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Professor John Barbur

Optics Chair

School of Health & Medical Sciences

Contact details

Address

Professor John Barbur M111 , Myddelton Street Building [M]
City St George's, University of London
Northampton Square
London EC1V 0HB
United Kingdom

Personal links

About

Overview

John Barbur is Professor of Optics & Visual Science and Director of the Applied Vision Research Centre at City University London. John trained at Imperial College where he studied Physics, Applied Optics and Vision Science.

John's research interests cover both fundamental studies of visual mechanisms  as well as applied and clinical research. He has pursued the development of research instrumentation and new measurement techniques and this has resulted in new methods and instrumentation for analysis of pupil response components, spatial vision and chromatic sensitivity and the measurement of scattered light in the eye. The various techniques are based on both visual psychophysics and the measurement of involuntary responses such as eye movements and pupil signals and have been employed to study both applied and clinical aspects of visual processing.

Prof Barbur has been closely involved with the activities of the Applied Vision Association, the Colour Group of Great Britain, the International Colour Vision Society. Studies carried out over several years by Prof Barbur and his colleagues at City University London formed the basis for the formation of the Applied Vision Research Centre in 1986. Several students, with both clinical and basic science backgrounds have been trained in Prof Barbur's laboratory over 30 years and have found employment in industry, hospitals and universities. Professor Barbur is a Fulbright Scholar and spent time as Visiting Professor at the Center for Visual Science at the University of Rochester, N.Y. where he worked on colour vision, visual performance in the mesopic range and adaptive optics.

Qualifications

BSc, ARCS, MSc, DIC, PhD.

Administrative roles

  • Member of SHS Research Committee
  • Member of Senate Research Committee
  • Member of EPSRC College of Experts

Memberships of professional organisations

  • The Applied Vision Association
  • The International Colour Vision Society
  • The Pupil Colloquium Society
  • The Colour Group of Great Britain
  • The Optical Society of America

Award

  • Society for Lighting Research & Technology (2008) The Walsh-Weston Award

Teaching

- Responsible for the photometry / colorimetry and lighting sub-modules
- Responsible for associated laboratory sessions
- Responsible for supervision of several 3rd year special studies

Modules taught

- Optometry BSc Part I

Research

Research overview

Professor Barbur's research work is concerned primarily with the analysis and understanding of human vision and has been carried out mainly through psychophysical investigations, non-invasive measurement of involuntary signals, fMRI imaging and mathematical modelling of visual mechanisms.  Recently, John I has concentrated more on the translation of fundamental research findings into industrial and clinical applications. 

Research areas

- Mesopic photometry; Colour vision mechanisms / Colour constancy
- Blindsight / Pupillometry / Light flux sensing / Aging and vision
- Colour-defined motion / Rapid flicker
- Disability and discomfort glare

Grants

- 2008-2010, JL Barbur, Sasakawa Foundation Pupil Control Mechanisms and Clinical Applications
- 2009-2010, JL Barbur, Emerald Fund. Early Detection of AMD and other retinal diseases
- 2010-2013, JL Barbur, P Raynham (UCL) and A Smith (RH)    EPSRC. Street lighting glare: a study of discomfort glare using light scatter and fMRI
- 2011-2015, JL Barbur, S Fotios (Sheffield) and P Raynham (UCL)    EPSRC. Optimisation of mesopic illumination for residential streets
- 2011-2014, JL Barbur and M Rodriguez-Carmona. Colt Foundation Extension of CAD test in occupational environments
- 2011-2014, JL Barbur, UK Civil Aviation Authority. Minimum Colour Vision Requirements
- 2011-2014, JL Barbur, Qinetiq Ltd. Effects of altitude hypoxia on visual performance

Research centres

- Applied Vision Research Centre, The Wellcome Laboratories for Vision Science

Principal collaborators

- C.C. Hull (City University London)
- D.F. Edgar (City University London)
- A. Subramanian (City University London)
- B. Huntjens (City University London)
- G. Plant (National Hospital)
- P. Raynham (UCL)
- S. Fotios (Sheffield)
- D.Connolly (Qinetiq)
- D.Osorio (Sussex)
- M. Michaelides (Moorfields Eye Hospital)

Research assistants

- J.A. Harlow
- Dr Wei Bi

Fellows

- Dr Marisa Rodriguez-Carmona
- Dr Gary Bargary

Research students

Roopa Vemala

Thesis title: Colour vision loss in ARMD

Further information: Sobha Sivaprasad (Co-supervisor) Kings College Hospital (Sponsor)

Ahmed Abdel-Hay.

Thesis title: A study of colour vision in patients with diabetes

Further information: Ahalya Subramanian / David Edgar / Sobha Sivaprasad (Co-supervisor) Kings College London (Sponsor)

Hanna Gillespie-Gallery

Thesis title: Vision in the mesopic range

Further information: Gary Bargary (Co-supervisor) EPSRC (Sponsor)

Emily Patterson

Thesis title: Aging and disability glare

Further information: Gary Bargary (Co-supervisor) EPSRC (Sponsor)

Yingxin Jea

Thesis title: Discomfort glare in lighting installations

Further information: Gary Bargary (Co-supervisor) EPSRC (Sponsor)

Hickey Joseph

Thesis title: Colour vision requirements within Air Traffic Control Environment

Further information: Marisa Rodriguez-Carmona (Co-supervisor) Colt Foundation, Civil Aviation Authority (Sponsor)

Will Serle

Thesis title: Effects of hypoxia on mesopic vision

Further information: Byki Huntgens (Co-supervisor) Qinetiq (Sponsor)

Publications

Publications by category

Chapters (7)

  • Barbur, J.L., Llapashtica, E., Rider, A.T. and Stockman, A. (2024). Photopic, Mesopic and Scotopic Vision and Changes in Visual Performance. Reference Module in Neuroscience and Biobehavioral Psychology Elsevier. ISBN 978-0-12-809324-5.
  • Shinomori, K., Barbur, J.L. and Werner, J.S. (2022). Aging of visual mechanisms. Progress in Brain Research (pp. 257–273). Elsevier. ISBN 978-0-323-85945-5.
  • Rodriguez-Carmona, M. and Barbur, J.L. (2017). Variability in normal and defective colour vision. Colour Design (pp. 43–97). Elsevier. ISBN 978-0-08-101270-3.
  • Rodriguez Carmona, M. and Barbur, J.L. (2016). Color vision changes in normal aging. In Elliot, A.J., Fairchild, M.D. and Franklin, A. (Eds.), Handbook of Color Psychology Cambridge University Press. ISBN 978-1-107-04323-7.
  • Huchzermeyer, C., Kremers, J. and Barbur, J. (2016). Color Vision in Clinical Practice. Human Color Vision (pp. 269–315). Springer International Publishing. ISBN 978-3-319-44976-0.
  • Rodriguez-Carmona, M. and Barbur, J.L. (2012). Variability in normal and defective colour vision: consequences for occupational environments. In Best, J. (Ed.), Colour design (pp. 24–82). Cambridge, UK: Woodhead Publishing Limited.
  • Barbur, J. and Stockman, A. Photopic, Mesopic and Scotopic Vision and Changes in Visual Performance. In Dartt, D., Besharse, J.C. and Dana, R. (Eds.), (pp. 323–331). Elsevier.

Conference papers and proceedings (67)

  • Keuken, A., Subramanian, A., Mueller-Schotte, S. and Barbur, J. (2024). Age-related normal limits for visual acuity and contrast sensitivity in photopic and mesopic lighting. European Academy of Optometry and Optics 10-12 May.
  • Evans, B., Rodríguez‐Carmona, M., Llapashtica, E. and Barbur, J. (2024). Development and validation of a new colour vision screener: A multi‐centre study. doi:10.1111/aos.15832
  • Llapashtica, E. and Barbur, J. (2024). The effects of post‐saccadic oscillations on visual processing time. doi:10.1111/aos.16171
  • Vaughan, M., Bohra, S., Patterson, E., Rodriguez‐Carmona, M. and Barbur, J. (2024). The use of colour and rapid flicker sensitivity tests for early detection and monitoring of vision changes in diabetes. doi:10.1111/aos.16168
  • Barbur, J. (2024). Effect of pre‐receptor filters on chromatic sensitivity and other visual functions in the eye. doi:10.1111/aos.16429
  • Hafeez, A., Barbur, J.L., Ctori, I., Binns, A., Wong, S. and Lim, S. (2024). New methods for detection of early loss of rapid flicker, spatial vision, and chromatic sensitivity in glaucoma. doi:10.1111/aos.16487
  • Rodriguez‐Carmona, M. and Barbur, J.L. (2024). Effect of macular pigment optical density on Yellow‐Blue and Red‐Green colour discrimination. doi:10.1111/aos.16430
  • Natali, L., Farini, A., Baldanzi, E. and Barbur, J.L. (2023). Chromatic sensitivity and tinted lenses: A preliminary study with the CAD test. doi:10.1393/ncc/i2023-23172-0
  • Vaughan, M.H., Tay, N., Kalitzeos, A., Kane, T., Singh, N., Zheng, A. … Patterson, E.J. (2023). Subclinical changes detected in diabetes mellitus using high resolution retinal imaging and colour vision assessment.
  • Barbur, J. and Wong, S. (2022). Colour vision changes in patients with pressure differences across the lamina cribrosa. doi:10.1111/j.1755-3768.2022.15367
  • Davies, N. and Barbur, J. (2022). Changes in visual function associated with hydroxychloroquine retinal toxicity. doi:10.1111/j.1755-3768.2022.15369
  • Rodriguez‐Carmona, M., Bastaki, Q. and Barbur, J.L. (2022). Loss of colour vision in patients at risk of developing diabetes. doi:10.1111/j.1755-3768.2022.15366
  • Durai, R.R., Bharadwaj, S.R., Barbur, J., Rodriguez, M. and Rugvedi, A. (2021). Binocular summation of cone- and rod specific signals in flicker-threshold tasks. ARVO 2021 1-7 May, Virtual.
  • Barbur, J.L., Evans, B. and Rodriguez-Carmona, M. (2019). New screener for congenital and acquired colour deficiencies.
  • Rodriguez-Carmona, M., Bastaki, Q. and Barbur, J.L. (2019). Loss of color and flicker sensitivity in subjects at risk of developing diabetes.
  • Evans, B.E.W., Rodriguez-Carmona, M. and Barbur, J.L. (2019). Analysis of the residual signals colour deficients can use to pass the D-15 test.
  • Hathibelagal, A., Bharadwaj, S., Subramanian, A. and Barbur, J. (2019). Rapid assessment of rod and cone-mediated vision in patients with known diseases of the retina. IERG.
  • Yadav, A.R., Hathibelagal, A., Bharadwaj, S., Subramanian, A., Sadler, J. and Barbur, J. (2019). Flicker sensitivity in normal aging eyes using rod-cone flicker test. IERG.
  • Hathibelagal, A.R., Bharadwaj, S.R., Subramanian, A., Sadler, J. and Barbur, J. (2019). Age-related changes in flicker sensitivity with rod- and cone-enhanced stimuli.
  • Barbur, J.L., Rodriguez‐Carmona, M. and Evans, B. (2019). Assessing the severity of colour vision loss – implications for occupational environments. doi:10.1111/j.1755-3768.2019.8227
  • Bastaki, Q., Rodriguez‐Carmona, M. and Barbur, J.L. (2019). The grading of risk factors for diabetes based on early loss of colour and flicker sensitivity. doi:10.1111/j.1755-3768.2019.5454
  • Ankamah, E., Moran, R., Green-Gomez, M., Ng, E., Welge-Luessen, U., Kaercher, T. … Nolan, J.M. (2018). Visual function is compromised in patients with vitreous floaters.
  • Keuken, A., Subramanian, A. and Barbur, J.L. (2018). Monocular and binocular limits for spatial vision: Effects of 'normal' aging on photopic and mesopic visual acuity and contrast sensitivity.
  • (2018). Refractive error and forward light scatter. doi:10.1111/aos.13972_324
  • (2018). New analysis of the Farnsworth D‐15 test. doi:10.1111/aos.13972_131
  • (2018). Scattered light and retinal sensitivity to contrast. doi:10.1111/aos.13972_26
  • Keuken, A., Subramanian, A. and Barbur, J. (2018). Effects of ‘normal’ ageing on photopic and mesopic visual acuity and contrast sensitivity. ARVO.
  • Keuken, A., Subramanian, A. and Barbur, J.L. (2017). Normal upper age‐limits for photopic and mesopic visual acuity and functional contrast sensitivity. doi:10.1111/j.1755-3768.2017.03332
  • Barbur, J.L., Llapashtica, E., Connolly, D. and Sadler, J. (2017). Measurement of oculomotor parameters and visual processing times without eye‐tracking. doi:10.1111/j.1755-3768.2017.03331
  • Llapashtica, E., Sadler, J., Barbur, J.L., Connolly, D.M., Sun, T., Grattan, K. … Llapashtica, E. (2017). Integrated saccade latency as a measure of fatigue. Aerospace Medicine and Human Performance Denver, Colorado.
  • Vemala, R., Sivaprasad, S. and Barbur, J.L. (2016). A study of chromatic sensitivity loss in Age Related Maculopathy (ARM) with emphasis on reticular drusen, soft drusen and other ARM morphologies.
  • Gillespie-Gallery, H., Bargary, G., Bi, W. and Barbur, J.L. (2015). Spatial vision in the mesopic range: the effect of illumination spectra.
  • Abdel-Hay, A., Sivaprasad, S., Subramanian, A., Konstantakopoulou, E., Edgar, D. and Barbur, J. (2015). Chromatic sensitivity changes in Type I and Type II diabetics. ARVO.
  • Gillespie-Gallery, H.C.R. and Barbur, J.L. (2014). Motion capture of colour-defined background textures by luminance-defined motion signals.
  • Hickey, J.D., Barbur, J.L. and Rodriguez-Carmona, M. (2014). How colour signals benefit visual search.
  • Bi, W. and Barbur, J.L. (2013). A new psychophysical technique to measure chromatic afterimages.
  • Abdel-Hay, A., Sivaprasad, S., Subramanian, A., Konstantakopoulou, E., Edgar, D. and Barbur, J. (2013). Chromatic sensitivity in diabetic patients treated with Ozurdex. ARVO.
  • Dhanani, S.D., Asaria, T.S., Barbur, J.L. and Huntjens, B. (2012). Relationship between Macular Pigment and Foveal Anatomic Architecture in an Asian Population. Association for Research in Vision and Ophthalmology 6-10 May, Fort Lauderdale (USA).
  • Asaria, T.S., Dhanani, S.D., Barbur, J.L. and Huntjens, B. (2012). Macular Pigment Spatial Profiles in a Healthy Asian Population. Association for Research in Vision and Ophthalmology 6-10 May, Fort Lauderdale (USA).
  • Jindahra, P., Bi, W., Petrie, A., Barbur, J.L. and Plant, G.T. (2012). THE PUPIL LIGHT REFEX IN ACQUIRED HOMONYMOUS HEMIANOPIA. doi:10.1136/jnnp-2012-304200a.98
  • Plant, G., Barbur, J., Jindahra, P. and Bridge, H. (2010). DEMONSTRATION OF OPTIC TRACT ATROPHY IN HEMIANOPIA BY MAGNETIC RESONANCE IMAGING: CONFIRMATION OF RETROGRADE TRANS-SYNAPTIC DEGENERATION IN THE HUMAN VISUAL PATHWAY. doi:10.1136/jnnp.2010.226340.110
  • Walkey, H.C., Harlow, J.A. and Barbur, J.L. (2004). Effective contrast of coloured stimuli in the mesopic range: A metric based on achromatic contrast.
  • Schalch, W., Koepcke, W., Rodriguez-Carmona, M., Harlow, J.A. and Barbur, J.L. (2004). Profiles of macular pigment optical density (MPOD) in subpopulations of a supplementation trial with lutein (LUT) and zeaxanthin (ZEA).
  • Rodriguez-Carmona, M., Barbur, J.L., Harlow, J.A., Schalch, W. and Kopcke, W. (2004). Chromatic sensitivity changes in relation to macular pigment optical density (MPOD) in human vision.
  • Schalch, W., Rodriguez-Carmona, M., Harlow, J.A., Barbur, J.L. and Koepcke, W. (2004). Macular pigment optical density (MPOD) measurements using visual displays - a new method and first results.
  • Kvansakul, J., Edgar, D.F., Barbur, J.L., Schalch, W., Barker, F.M. and Köpcke, W. (2004). Assessment of visual performance in relation to macular pigment density in human vision.
  • Chisholm, C.M., Anderson, D.F., Kvansakul, J., Khan, A., Gartry, D.S. and Barbur, J. (2004). Prospective, randomised, double-masked study of conventional versus wavefront-guided LASIK: Visual performance outcomes.
  • Schalch, W., Barker, F.M., Koepcke, W., Kvansakul, J. and Barbur, J.L. (2004). Effects of supplementation with lutein (LUT) and zeaxanthin (ZEA), the constituents of the yellow macular pigment (YMP), on visual performance.
  • Rodriguez-Carmona, M., Harlow, J.A. and Barbur, J.L. (2003). Pupil responses to chromatic afterimages.
  • Barbur, J.L., Rodriguez-Carmona, M.L. and Morgan, M.J. (2002). "Double-blindsight" in human vision.
  • Chisholm, C.M., Barbur, J.L., Harlow, J.A. and Edgar, D.F. (2001). A new "pass/fail" test for assessing visual performance following corneal refractive surgery.
  • Walkey, H.C., Barbur, J.L., Harlow, J.A. and Makous, W. (2001). Measurements of chromatic sensitivity in the mesopic range. doi:10.1002/1520-6378(2001)26:1+3.3.co;2-j
  • Barbur, J.L., Chisholm, C. and Harlow, J.A. (2001). New test for assessing visual performance following corneal refractive surgery.
  • Edgar, D.F., Hennelly, M. and Barbur, J.L. (2000). Factors affecting the accuracy of light scatter measurements in human vision.
  • Chisholm, C.M., Barbur, J.L., Edgar, D.F. and Thomson, W.D. (2000). The effect of excimer laser refractive surgery on visual performance.
  • Barbur, J.L., Harlow, J.A., Moro, S. and Levy, I.S. (2000). Perimetric study of relative afferent pupil defects.
  • Harlow, J.A., Barbur, J.L. and Fahle, M. (1999). Effects of dynamic chromatic and luminance contrast noise on the perception of coherent motion.
  • Barbur, J.L., Harlow, J.A., Hurden, A. and Smith, P. (1999). Visual performance in the mesopic range.
  • Barbur, J.L., Chisholm, C.M. and Harlow, J.A. (1999). Effects of increased scattered light on visual performance.
  • Barbur, J.L., Harlow, J.A. and Williams, C. (1997). Light scattered in the eye and its effect on the measurement of the colour constancy index.
  • Hennelly, M.L., Barbur, J.L., Edgar, D.F. and Woodward, E.G. (1997). Factors affecting the integrated straylight parameter in the normal human eye.
  • Barbur, J.L., Cole, V.A. and Plant, G.T. (1997). Chromatic discrimination in subjects with both congenital and acquired colour vision deficiencies.
  • EDGAR, D.F., BARBUR, J.L. and WOODWARD, E.G. (1995). PUPIL SIZE MEASUREMENTS IN RELATION TO LIGHT SCATTER IN THE EYE.
  • Barbur, J.L., De Cuhna, D., Harlow, A.J. and Woodward, E.G. (1993). METHODS FOR THE MEASUREMENT AND ANALYSIS OF LIGHT SCATTERED IN THE HUMAN EYE.
  • Barbur, J.L., Harlow, J.A., Plant, G. and Williams, C. (1993). COLOUR DISCRIMINATION MEASUREMENTS IN PATIENTS WITH CEREBRAL ACHROMATOPSIA.
  • BARBUR, J.L., FORSYTH, P.M. and WOODING, D.S. (1991). COLOR, EFFECTIVE CONTRAST AND SEARCH PERFORMANCE.
  • BARBUR, J.L. and HARLOW, A.J. (1990). PUPILLARY RESPONSES TO STIMULUS STRUCTURE AND COLOR POSSIBLE MECHANISMS.

Journal articles (190)

  • Evans, B.E.W., Rodriguez-Carmona, M., Rauscher, F.G., Llapashtica, E., Koefoed, V.F., Ziemssen, F. … Barbur, J.L. (2025). Multicenter evaluation of the color vision screener test. Journal of the Optical Society of America A, 42(5). doi:10.1364/josaa.544985.

    [publisher’s website]

  • Evans, B.E.W., Rodriguez-Carmona, M., Llapashtica, E. and Barbur, J.L. (2025). Color screening outcomes on uncalibrated “home” displays—assessment of variability in sRGB color standard parameters on commercial visual displays. Journal of the Optical Society of America A, 42(5). doi:10.1364/josaa.544986.

    [publisher’s website]

  • Llapashtica, E., Barbur, J.L. and Haenschel, C. (2025). Reduced Visual Function in Schizotypal Traits: An Exploratory Study. Schizophrenia Bulletin, 51(Supplement_2). doi:10.1093/schbul/sbae049.

    [publisher’s website]

  • Vaughan, M., Tay, N., Kalitzeos, A., Kane, T., Singh, N., Zheng, A. … Patterson, E.J. (2024). Changes in Waveguiding Cone Photoreceptors and Color Vision in Patients With Diabetes Mellitus. Investigative Ophthalmology & Visual Science, 65(14). doi:10.1167/iovs.65.14.28.

    [publisher’s website]

  • Cideciyan, A.V., Roman, A.J., Warner, R.L., Sumaroka, A., Wu, V., Jiang, Y.Y. … Aleman, T.S. (2024). Evaluation of Retinal Structure and Visual Function in Blue Cone Monochromacy to Develop Clinical Endpoints for L-opsin Gene Therapy. International Journal of Molecular Sciences, 25(19), pp. 10639–10639. doi:10.3390/ijms251910639.

    [publisher’s website]

  • Keuken, A., Subramanian, A., Mueller-Schotte, S. and Barbur, J.L. (2024). Age-related normal limits for visual acuity and contrast sensitivity in different lighting conditions. Gerontechnology, 23(s), pp. 1–1. doi:10.4017/gt.2024.23.s.956.opp.

    [publisher’s website]

  • Llapashtica, E., Sun, T., Grattan, K.T.V. and Barbur, J.L. (2024). Effects of post-saccadic oscillations on visual processing times. PLOS ONE, 19(5). doi:10.1371/journal.pone.0302459.
  • Reena Durai, C.V., Hathibelagal, A.R., Rodriguez-Carmona, M., Barbur, J.L. and Bharadwaj, S.R. (2023). Effect of monocular sensitivity on binocular summation of luminance-modulated flicker. PLOS ONE, 18(1). doi:10.1371/journal.pone.0280785.

    [publisher’s website]

  • Mascio, A.A., Roman, A.J., Cideciyan, A.V., Sheplock, R., Wu, V., Garafalo, A.V. … Barbur, J.L. (2023). Color Vision in Blue Cone Monochromacy: Outcome Measures for a Clinical Trial. Translational Vision Science & Technology, 12. doi:10.1167/tvst.12.1.25.
  • Keuken, A., Subramanian, A., Mueller‐Schotte, S. and Barbur, J.L. (2022). Age‐related normal limits for spatial vision. Ophthalmic and Physiological Optics, 42(6), pp. 1363–1378. doi:10.1111/opo.13037.
  • Ankamah, E., Green-Gomez, M., Roche, W., Ng, E., Welge-Lüßen, U., Kaercher, T. … Nolan, J.M. (2022). Impact of symptomatic vitreous degeneration on photopic and mesopic contrast thresholds. Clinical and Experimental Optometry, 105(6), pp. 609–616. doi:10.1080/08164622.2021.1981116.

    [publisher’s website]

  • Pérez-Carrasco, M.J., Carballo-Álvarez, J., Barbur, J.L. and Puell, M.C. (2021). Relationship Between Flicker Modulation Sensitivity and Retinal Ganglion Cell Related Layer Thicknesses. Translational Vision Science & Technology, 10(12), pp. 16–16. doi:10.1167/tvst.10.12.16.

    [publisher’s website]

  • Hathibelagal, A.R., Bharadwaj, S.R., Jalali, S., Subramanian, A. and Barbur, J.L. (2021). Evaluation of photoreceptor function in inherited retinal diseases using rod‐ and cone‐enhanced flicker stimuli. Ophthalmic and Physiological Optics, 41(4), pp. 874–884. doi:10.1111/opo.12799.

    [publisher’s website]

  • Rodriguez‐Carmona, M., Evans, B.E.W. and Barbur, J.L. (2021). Color vision assessment‐2: Color assessment outcomes using single and multi‐test protocols. Color Research & Application, 46(1), pp. 21–32. doi:10.1002/col.22598.

    [publisher’s website]

  • Evans, B.E.W., Rodriguez‐Carmona, M. and Barbur, J.L. (2021). Color vision assessment‐1: Visual signals that affect the results of the Farnsworth D‐15 test. Color Research & Application, 46(1), pp. 7–20. doi:10.1002/col.22596.

    [publisher’s website]

  • Barbur, J.L., Rodriguez‐Carmona, M. and Evans, B.E.W. (2021). Color vision assessment‐3. An efficient, two‐step, color assessment protocol. Color Research & Application, 46(1), pp. 33–45. doi:10.1002/col.22599.

    [publisher’s website]

  • Hathibelagal, A.R., Bharadwaj, S.R., Yadav, A.R., Subramanian, A., Sadler, J.R.E. and Barbur, J.L. (2020). Age-related change in flicker thresholds with rod- and cone-enhanced stimuli. PLOS ONE, 15(7). doi:10.1371/journal.pone.0232784.

    [publisher’s website]

  • Artal, P. and Barbur, J. (2020). 33rd International Pupil Colloquium, Murcia, Universidad de Murcia (Spain); 2nd–4th October 2019. Ophthalmic and Physiological Optics, 40(3), pp. 376–376. doi:10.1111/opo.12688.

    [publisher’s website]

  • Nagra, M., Patel, M. and Barbur, J. (2020). Changes in forward light scatter parameters as a function of refractive error in young adults. Graefe's Archive for Clinical and Experimental Ophthalmology, 258(4), pp. 925–930. doi:10.1007/s00417-019-04584-9.

    [publisher’s website]

  • Chen, Y., Wang, J., Zhao, Y., Liu, X.-.J., Zhang, H., Murdoch, I. … Grattan, K.V. (2019). Small core FBG-based temperature compensated ‘smart’ contact lens for effective intraocular pressure measurement. Measurement: Sensors, 1, pp. 100001–100001. doi:10.1016/j.measen.2019.100001.

    [publisher’s website]

  • Suttle, C.M., Barbur, J. and Conway, M.L. (2018). Author's reply. Ophthalmic and Physiological Optics, 38(4), pp. 469–469. doi:10.1111/opo.12569.

    [publisher’s website]

  • Abdel-Hay, A., Sivaprasad, S., Subramanian, A. and Barbur, J.L. (2018). Acuity and colour vision changes post intravitreal dexamethasone implant injection in patients with diabetic macular oedema. PLOS ONE, 13(6). doi:10.1371/journal.pone.0199693.

    [publisher’s website]

  • Vemala, R., Sivaprasad, S. and Barbur, J.L. (2017). Detection of Early Loss of Color Vision in Age-Related Macular Degeneration – With Emphasis on Drusen and Reticular Pseudodrusen. Investigative Opthalmology & Visual Science, 58(6). doi:10.1167/iovs.17-21771.

    [publisher’s website]

  • Suttle, C.M., Barbur, J. and Conway, M.L. (2017). Coloured overlays and precision‐tinted lenses: poor repeatability in a sample of adults and children diagnosed with visual stress. Ophthalmic and Physiological Optics, 37(4), pp. 542–548. doi:10.1111/opo.12389.

    [publisher’s website]

  • Barbur, J.L. and Rodriguez-Carmona, M. (2017). Colour vision requirements in visually demanding occupations. British Medical Bulletin, 122(1), pp. 51–77. doi:10.1093/bmb/ldx007.

    [publisher’s website]

  • Llapashtica, E., Sadler, J., Barbur, J., Connolly, D.M., Sun, T. and Grattan, K. (2017). Integrated saccade latency as a measure of fatigue. Aerospace medicine and human performance, 88(3), pp. 298–298.
  • Barbur, J., Llapashtica, E., Connolly, D.M., Sadler, J., Sun, T. and Grattan, K. (2017). The EMAIL test – measurement of integrated saccade latency and visual processing times without eye-tracking. Aerospace medicine and human performance, 88(3), pp. 298–298.
  • Rodriguez Carmona, M. and Barbur, J. (2017). Colour assessment outcomes – a new approach to grading the severity of color vision loss. Aerospace medicine and human performance, 88(3), pp. 298–298.
  • Suttle, C.M., Barbur, J. and Conway, M.L. (2017). Coloured overlays and precision-tinted lenses: poor repeatability in a sample of adults diagnosed with visual stress (vol 37, pg 542, 2017). OPHTHALMIC AND PHYSIOLOGICAL OPTICS, 37(5), pp. 629–629. doi:10.1111/opo.12404.
  • Alim-Marvasti, A., Bi, W., Mahroo, O.A., Barbur, J.L. and Plant, G.T. (2016). Transient Smartphone “Blindness”. New England Journal of Medicine, 374(25), pp. 2502–2504. doi:10.1056/nejmc1514294.

    [publisher’s website]

  • Bi, W., Gillespie-Gallery, H., Binns, A. and Barbur, J.L. (2016). Flicker Sensitivity in Normal Aging—Monocular Tests of Retinal Function at Photopic and Mesopic Light Levels. Investigative Opthalmology & Visual Science, 57(2), pp. 387–387. doi:10.1167/iovs.15-16481.

    [publisher’s website]

  • Barbur, J.L. and Rodriguez-Carmona, M. (2016). Occupational colour vision needs with emphasis on aviation. AIC2016 Interim Meeting, Color in Urban Life: Images, Objects and Spaces; Book of Abstracts pp. 431–434.
  • Millington, R.S., James-Galton, M., Barbur, J.L., Plant, G.T. and Bridge, H. (2015). Severe, persistent visual impairment associated with occipital calcification and coeliac disease. Journal of Neurology, 262(9), pp. 2056–2063. doi:10.1007/s00415-015-7817-1.
  • Millington, R.S., James-Galton, M., Barbur, J.L., Plant, G.T. and Bridge, H. (2015). Severe, persistent visual impairment associated with occipital calcification and coeliac disease. Journal of Neurology, 262(9), pp. 2056–2063. doi:10.1007/s00415-015-7817-1.

    [publisher’s website]

  • Pelah, A., Barbur, J., Thurrell, A. and Hock, H.S. (2015). The coupling of vision with locomotion in cortical blindness. Vision Research, 110, pp. 286–294. doi:10.1016/j.visres.2014.04.015.

    [publisher’s website]

  • Pelah, A., Barbur, J., Thurrell, A. and Hock, H.S. (2015). The coupling of vision with locomotion in cortical blindness. Vision Research, 110(PB), pp. 286–294. doi:10.1016/j.visres.2014.04.015.
  • Patterson, E.J., Bargary, G. and Barbur, J.L. (2015). Understanding disability glare: light scatter and retinal illuminance as predictors of sensitivity to contrast. Journal of the Optical Society of America A, 32(4), pp. 576–576. doi:10.1364/josaa.32.000576.

    [publisher’s website]

  • Bargary, G., Furlan, M., Raynham, P.J., Barbur, J.L. and Smith, A.T. (2015). Cortical hyperexcitability and sensitivity to discomfort glare. Neuropsychologia, 69, pp. 194–200. doi:10.1016/j.neuropsychologia.2015.02.006.

    [publisher’s website]

  • Bargary, G., Jia, Y. and Barbur, J.L. (2015). Mechanisms for Discomfort Glare in Central Vision. Investigative Ophthalmology & Visual Science, 56(1), pp. 464–471. doi:10.1167/iovs.14-15707.

    [publisher’s website]

  • Abdel-hay, A., Sivaprasad, S., Subramanian, A., Edgar, D. and Barbur, J.L. (2015). Chromatic sensitivity changes in Type I and Type II diabetics. INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, 56(7).
  • Millington, R.S., Yasuda, C.L., Jindahra, P., Jenkinson, M., Barbur, J.L., Kennard, C. … Bridge, H. (2014). Quantifying the pattern of optic tract degeneration in human hemianopia. Journal of Neurology, Neurosurgery and Psychiatry, 85(4), pp. 379–386. doi:10.1136/jnnp-2013-306577.
  • Gillespie-Gallery, H., Konstantakopoulou, E., Harlow, J.A. and Barbur, J.L. (2013). Capturing age-related changes in functional contrast sensitivity with decreasing light levels in monocular and binocular vision. Invest Ophthalmol Vis Sci, 54(9), pp. 6093–6103. doi:10.1167/iovs.13-12119.
  • Rauscher, F.G., Chisholm, C.M., Edgar, D.F. and Barbur, J.L. (2013). Assessment of novel binocular colour, motion and contrast tests in glaucoma. Cell and Tissue Research, 353(2), pp. 297–310. doi:10.1007/s00441-013-1675-x.
  • Rauscher, F.G., Chisholm, C.M., Edgar, D.F. and Barbur, J.L. (2013). Assessment of novel binocular colour, motion and contrast tests in glaucoma. Cell and Tissue Research pp. 1–14.
  • Millington, R.S., Yasuda, C.L., Jindahra, P., Jenkinson, M., Barbur, J.L., Kennard, C. … Bridge, H. (2013). Quantifying the pattern of optic tract degeneration in human hemianopia. Journal of Neurology, Neurosurgery and Psychiatry.
  • Jia, Y., Bargary, G. and Barbur, J.L. (2013). A study of mechanisms for discomfort glare. PERCEPTION, 42, pp. 88–89.
  • Bargary, G. and Barbur, J.L. (2013). Parallel processing under conditions of discomfort glare. PERCEPTION, 42, pp. 24–24.
  • Gillespie-Gallery, H., Konstantakopoulou, E. and Barbur, J.L. (2013). Capturing light and age-related changes in spatial vision. PERCEPTION, 42, pp. 20–20.
  • Alissa, R., Bi, W., Bessero, A.-.C., Plant, G. and Barbur, J.L. (2013). Vision in subjects with hyperawareness of afterimages and "visual snow". PERCEPTION, 42, pp. 83–83.
  • Patterson, E., Bargary, G. and Barbur, J.L. (2013). Understanding disability glare: light scatter and retinal illuminance as predictors of sensitivity to contrast. PERCEPTION, 42, pp. 88–88.
  • Serle, W., Connolly, D. and Barbur, J. (2012). Novel tool for assessment of visual performance when using NVD. Proceedings - Annual SAFE Symposium (Survival and Flight Equipment Association) pp. 141–153.
  • Konstantakopoulou, E., Rodriguez-Carmona, M. and Barbur, J.L. (2012). Processing of color signals in female carriers of color vision deficiency. Journal of vision, 12(2).
  • Konstantakopoulou, E., Rodriguez-Carmona, M. and Barbur, J.L. (2012). Processing of color signals in female carriers of color vision deficiency. Journal of Vision, 12(2), pp. 11–11. doi:10.1167/12.2.11.

    [publisher’s website]

  • Barbur, J.L. and Konstantakopoulou, E. (2012). Changes in color vision with decreasing light level: separating the effects of normal aging from disease. J Opt Soc Am A Opt Image Sci Vis, 29(2). doi:10.1364/JOSAA.29.000A27.
  • Rodriguez-Carmona, M., O'Neill-Biba, M. and Barbur, J.L. (2012). Assessing the Severity of Color Vision Loss with Implications for Aviation and other Occupational Environments. Aviation, Space, and Environmental Medicine, 83(1), pp. 19–29. doi:10.3357/ASEM.3111.2012.
  • Millington, R., Yasuda, C., Beltramini, G., Jindahra, P., Barbur, J., Plant, G. … Bridge, H. (2012). Patterns of fMRI visual cortex activation in patients with hemianopia. PERCEPTION, 41, pp. 157–157.
  • Rodriguez-Carmona, M., O'Neill-Biba, M. and Barbur, J.L. (2012). Assessing the severity of color vision loss with implications for aviation and other occupational environments. Aviat Space Environ Med, 83(1), pp. 19–29. doi:10.3357/asem.3111.2012.
  • Rodriguez-Carmona, M., Sharpe, L.T., Harlow, J.A. and Barbur, J.L. (2012). Sex-related differences in chromatic sensitivity. Visual Neuroscience, 25, pp. 433–440. doi:10.1017/S095252380808019X.
  • Barbur, J.L. and Connolly, D.M. (2011). Effects of hypoxia on color vision with emphasis on the mesopic range. Expert Review of Ophthalmology, 6(4), pp. 409–420. doi:10.1586/eop.11.32.

    [publisher’s website]

  • Rauscher, F.G., Plant, G.T., James-Galton, M. and Barbur, J.L. (2011). Evidence for Non-Opponent Coding of Colour Information in Human Visual Cortex: Selective Loss of “Green” Sensitivity in a Subject with Damaged Ventral Occipito-Temporal Cortex. Neuro-Ophthalmology, 35(1), pp. 1–6. doi:10.3109/01658107.2010.540767.

    [publisher’s website]

  • Bridge, H., Jindahra, P., Barbur, J. and Plant, G.T. (2011). Imaging reveals optic tract degeneration in hemianopia. Invest Ophthalmol Vis Sci, 52(1), pp. 382–388. doi:10.1167/iovs.10-5708.
  • Barbur, J. and Connolly, D.M. (2011). Effects of hypixia on colour vision with emphasis on the mesopic range. Expert Review of Ophthalmology.
  • Buck, S., Barbur, J., Kremers, J., Nascimento, S. and Smithson, H. (2010). Proceedings of the 20th biennial Symposium of the International Colour Vision Society July 2009, Braga, Portugal. Ophthalmic Physiol Opt, 30(5), pp. 419–420. doi:10.1111/j.1475-1313.2010.00777.x.
  • Barbur, J.L., Konstantakopoulou, E., Rodriguez-Carmona, M., Harlow, J.A., Robson, A.G. and Moreland, J.D. (2010). The Macular Assessment Profile test - a new VDU-based technique for measuring the spatial distribution of the macular pigment, lens density and rapid flicker sensitivity. Ophthalmic Physiol Opt, 30(5), pp. 470–483. doi:10.1111/j.1475-1313.2010.00748.x.
  • Jennings, B.J. and Barbur, J.L. (2010). Colour detection thresholds as a function of chromatic adaptation and light level. Ophthalmic and Physiological Optics, 30(5), pp. 560–567. doi:10.1111/j.1475-1313.2010.00773.x.

    [publisher’s website]

  • O’Neill‐Biba, M., Sivaprasad, S., Rodriguez‐Carmona, M., Wolf, J.E. and Barbur, J.L. (2010). Loss of chromatic sensitivity in AMD and diabetes: a comparative study. Ophthalmic and Physiological Optics, 30(5), pp. 705–716. doi:10.1111/j.1475-1313.2010.00775.x.

    [publisher’s website]

  • Barbur, J.L., Konstantakopoulou, E., Rodriguez-Carmona, M., Harlow, J.A., Robson, A.G. and Moreland, J.D. (2010). The macular assessment profile test - A new VDU-based technique for measuring the spatial distribution of the macular pigment, lens density and rapid flicker sensitivity. Ophthalmic and Physiological Optics, 30(5), pp. 470–483. doi:10.1111/j.1475-1313.2010.00748.x.
  • Crabb, D.P., Smith, N.D., Rauscher, F.G., Chisholm, C.M., Barbur, J.L., Edgar, D.F. … Garway-Heath, D.F. (2010). Exploring eye movements in patients with glaucoma when viewing a driving scene. PLoS One, 5(3). doi:10.1371/journal.pone.0009710.
  • Connolly, D.M. and Barbur, J.L. (2009). Low Contrast Acuity at Photopic and Mesopic Luminance Under Mild Hypoxia, Normoxia, and Hyperoxia. Aviation, Space, and Environmental Medicine, 80(11), pp. 933–940. doi:10.3357/asem.2535.2009.

    [publisher’s website]

  • Rodríguez-Carmona, M., Sharpe, L.T., Harlow, J.A. and Barbur, J.L. (2008). Sex-related differences in chromatic sensitivity. Visual Neuroscience, 25(3), pp. 433–440. doi:10.1017/S095252380808019X.
  • Barbur, J.L., Rodriguez-Carmona, M., Harlow, J.A., Mancuso, K., Neitz, J. and Neitz, M. (2008). A study of unusual Rayleigh matches in deutan deficiency. Visual Neuroscience, 25(3), pp. 507–516. doi:10.1017/S0952523808080619.
  • Dalimier, E., Dainty, C. and Barbur, J.L. (2008). Effects of higher-order aberrations on contrast acuity as a function of light level. Journal of Modern Optics, 55(4-5), pp. 791–803. doi:10.1080/09500340701469641.

    [publisher’s website]

  • Chisholm, C.M., Rauscher, F.G., Crabb, D.C., Davies, L.N., Dunne, M.C., Edgar, D.F. … Barbur, J.L. (2008). Assessing visual fields for driving in patients with paracentral scotomata. British Journal of Ophthalmology, 92(2), pp. 225–230. doi:10.1136/bjo.2007.129726.

    [publisher’s website]

  • Chisholm, C.M., Rauscher, F.G., Crabb, D.C., Davies, L.N., Dunne, M.C., Edgar, D.F. … Barbur, J.L. (2008). Assessing visual fields for driving in patients with paracentral scotomata. British Journal of Ophthalmology, 92(2), pp. 225–230. doi:10.1136/bjo.2007.129726.
  • Connolly, D.M., Barbur, J.L., Hosking, S.L. and Moorhead, I.R. (2008). Mild Hypoxia Impairs Chromatic Sensitivity in the Mesopic Range. Investigative Opthalmology & Visual Science, 49(2), pp. 820–820. doi:10.1167/iovs.07-1004.

    [publisher’s website]

  • Barbur, J.L., Rodriguez-Carmona, M., Harlow, J.A., Mancuso, K., Neitz, I. and Neitz, M. (2008). A study of unusual Rayleigh matches in deutan deficiency. VISUAL NEUROSCIENCE, 25(3), pp. 507–516. doi:10.1017/S0952523808080619.
  • Rodriguez-Carmona, M., Sharpe, L.T., Harlow, J.A. and Barbur, J.L. (2008). Sex-related differences in chromatic sensitivity. VISUAL NEUROSCIENCE, 25(3), pp. 433–440. doi:10.1017/S095252380808019X.
  • Barbur, J.L. and Spang, K. (2008). Colour constancy and conscious perception of changes of illuminant. Neuropsychologia, 46(3), pp. 853–863. doi:10.1016/j.neuropsychologia.2007.11.032.

    [publisher’s website]

  • Dalimier, E., Dainty, J.C. and Barbur, J. (2008). Effects og higher-order aberrations on contrast acuity as a funstion of light level. Journal of Modern Optics, 55, pp. 791–803.
  • Rodriguez-Carmona, M., Sharpe, L.T., Harlow, J.A. and Barbur, J. (2008). Sex-related differences in chromatic sensitivity. Vis Neurosci, 25, pp. 433–440.
  • Walkey, H., Orreveteläinen, P., Barbur, J., Halonen, L., Goodman, T., Alferdinck, J. … Szalmás, A. (2007). Mesopic visual efficiency II: reaction time experiments. Lighting Research & Technology, 39(4), pp. 335–354. doi:10.1177/1477153507080920.

    [publisher’s website]

  • Moro, S.I., Rodriguez-Carmona, M.L., Frost, E.C., Plant, G.T. and Barbur, J.L. (2007). Recovery of vision and pupil responses in optic neuritis and multiple sclerosis. Ophthalmic Physiol Opt, 27(5), pp. 451–460. doi:10.1111/j.1475-1313.2007.00501.x.
  • Moro, S.I., Rodriguez-Carmona, M.L., Frost, E.C., Plant, G.T. and Barbur, J.L. (2007). Recovery of vision and pupil responses in optic neuritis and multiple sclerosis. Ophthalmic and Physiological Optics, 27(5), pp. 451–460. doi:10.1111/j.1475-1313.2007.00501.x.
  • Fahle, M.W., Barbur, J. and Spang, K. (2007). Visual cortex mirrors stimulus variations that remain unconscious. PERCEPTION, 36, pp. 9–9.
  • Rauscher, F.G., Birzele, S., Boeggemann, M., Harlow, J.A. and Barbur, J. (2007). When is foveal 'crowding' abnormal? PERCEPTION, 36, pp. 41–41.
  • Barbur, J., Walkey, H. and Walker, G. (2007). The assessment of visual performance in the mesopic range. PERCEPTION, 36, pp. 122–123.
  • O'Neill-Biba, M.M., Plant, G.T., Rodriguez-Carmona, M., Thomson, W.D. and Barbur, J. (2007). The usefulness of colour vision assessment in subjects with diseases of the eye. PERCEPTION, 36, pp. 197–197.
  • Spang, K.M., Fahle, M. and Barbur, J. (2007). BOLD activations in response to changes in chromatic context - an investigation of instantaneous colour constancy mechanisms. PERCEPTION, 36, pp. 199–199.
  • Walker, G., Rodriguez-Carmona, M., Harlow, J. and Barbur, J. (2007). Selective absorption of short-wavelength light in the eye and its effect on yellow-blue chromatic sensitivity. PERCEPTION, 36, pp. 201–201.
  • Moro, S.I., Rodriguez-Carmona, M.L., Plant, G.T. and Barbur, J.L. (2007). Visual and pupil response deficits during optic neuritis and multiple sclerosis. SPANISH JOURNAL OF PSYCHOLOGY, 10(2), pp. 489–489.
  • Barbur, J.L., Fahle, M. and Spang, K. (2007). Dichoptic studies of instantaneous colour constancy in human vision. PERCEPTION, 36, pp. 189–189.
  • Barbur, J.L., DeCunha, D. and Spang, K. (2006). Dichoptic studies of instantaneous colour constancy in human vision. CGIV 2006 - 3rd European Conference on Colour in Graphics, Imaging, and Vision, Final Program and Proceedings pp. 137–139.
  • Walkey, H.C., Harlow, J.A. and Barbur, J.L. (2006). Characterising mesopic spectral sensitivity from reaction times. Vision Res, 46(25), pp. 4232–4243. doi:10.1016/j.visres.2006.08.002.
  • Walkey, H.C., Harlow, J.A. and Barbur, J.L. (2006). Characterising mesopic spectral sensitivity from reaction times. Vision Research, 46(25), pp. 4232–4243. doi:10.1016/j.visres.2006.08.002.
  • Kvansakul, J., Rodriguez-Carmona, M., Edgar, D.F., Barker, F.M., Köpcke, W., Schalch, W. … Barbur, J.L. (2006). Supplementation with the carotenoids lutein or zeaxanthin improves human visual performance. Ophthalmic and Physiological Optics, 26(4), pp. 362–371. doi:10.1111/j.1475-1313.2006.00387.x.
  • Walkey, H.C., Harlow, J.A. and Barbur, J.L. (2006). Changes in reaction time and search time with background luminance in the mesopic range. Ophthalmic Physiol Opt, 26(3), pp. 288–299. doi:10.1111/j.1475-1313.2006.00412.x.
  • Walkey, H.C., Harlow, J.A. and Barbur, J.L. (2006). Changes in reaction time and search time with background luminance in the mesopic range. Ophthalmic and Physiological Optics, 26(3), pp. 288–299. doi:10.1111/j.1475-1313.2006.00412.x.
  • Walkey, H.C. and Barbur, J.L. (2006). Guest Editorial: Shedding new light on the twilight zone. Ophthalmic and Physiological Optics, 26(3), pp. 223–224. doi:10.1111/j.1475-1313.2006.00420.x.

    [publisher’s website]

  • Rodriguez-Carmona, M., Kvansakul, J., Alister Harlow, J., Köpcke, W., Schalch, W. and Barbur, J.L. (2006). The effects of supplementation with lutein and/or zeaxanthin on human macular pigment density and colour vision. Ophthalmic and Physiological Optics, 26(2), pp. 137–147. doi:10.1111/j.1475-1313.2006.00386.x.
  • Rodriguez-Carmona, M., Kvansakul, J., Harlow, J.A., Köpcke, W., Schalch, W. and Barbur, J.L. (2006). The effects of supplementation with lutein and/or zeaxanthin on human macular pigment density and colour vision. OPHTHALMIC AND PHYSIOLOGICAL OPTICS, 26(2), pp. 137–147. doi:10.1111/j.1475-1313.2006.00386.x.
  • Kvansakul, J., Rodriguez-Carmona, M., Edgar, D.F., Barker, F.M., Koepcke, W., Schalch, W. … Barbur, J.L. (2006). Supplementation with the carotenoids lutein or zeaxanthin improves human visual performance. OPHTHALMIC AND PHYSIOLOGICAL OPTICS, 26(4), pp. 362–371. doi:10.1111/j.1475-1313.2006.00387.x.
  • Squire, T.J., Rodriguez-Carmona, M., Evans, A.D.B. and Barbur, J.L. (2005). Color vision tests for aviation: comparison of the anomaloscope and three lantern types. Aviation, space, and environmental medicine, 76(5), pp. 421–429.
  • Walkey, H.C., Barbur, J.L., Harlow, J.A., Hurden, A., Moorhead, I.R. and Taylor, J.A.E. (2005). Effective contrast of colored stimuli in the mesopic range: a metric for perceived contrast based on achromatic luminance contrast. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 22(1), pp. 17–28. doi:10.1364/JOSAA.22.000017.
  • Walkey, H.C., Barbur, J.L., Harlow, J.A., Hurden, A., Moorhead, I.R. and Taylor, J.A.F. (2005). Effective contrast of colored stimuli in the mesopic range: A metric for perceived contrast based on achromatic luminance contrast. Journal of the Optical Society of America A: Optics and Image Science, and Vision, 22(1), pp. 17–28. doi:10.1364/JOSAA.22.000017.
  • Barbur, J.L., Moro, S., Harlow, J.A., Lam, B.L. and Liu, M. (2004). Comparison of pupil responses to luminance and colour in severe optic neuritis. Clin Neurophysiol, 115(11), pp. 2650–2658. doi:10.1016/j.clinph.2004.05.022.
  • de Cunha, D.A., Eadie, L.H., Barbur, J.L., Hawkes, D.J. and Seifalian, A.M. (2004). The effect of image colour distortion on evaluation of donor liver suitability for transplantation. Computers in Biology and Medicine, 34(7), pp. 615–632. doi:10.1016/j.compbiomed.2003.10.001.

    [publisher’s website]

  • Barbur, J., Rodriguez-Carmona, M.L. and Harlow, J.A. (2004). A study of parameters that affect the outcome of the Rayleigh match. PERCEPTION, 33, pp. 60–60.
  • Walkey, H.C., Harlow, J.A. and Barbur, J.L. (2004). Mesopic spectral sensitivity derived from reaction times. PERCEPTION, 33, pp. 44–44.
  • Barbur, J.L. (2004). 'Double-blindsight' revealed through the processing of color and luminance contrast defined motion signals. Progress in brain research, 144, pp. 243–259. doi:10.1016/s0079-6123(03)14417-2.
  • Barbur, J.L. (2004). Study of instantaneous color constancy mechanisms in human vision. Journal of Electronic Imaging, 13(1), pp. 15–15. doi:10.1117/1.1636491.

    [publisher’s website]

  • Barbur, J.L. (2003). Understanding colour. Trends in Cognitive Sciences, 7(10), pp. 434–436. doi:10.1016/j.tics.2003.08.011.

    [publisher’s website]

  • Chisholm, C.M., Evans, A.D.B., Harlow, J.A. and Barbur, J.L. (2003). New test to assess pilot's vision following refractive surgery. Aviation Space and Environmental Medicine, 74(5 I), pp. 551–559.
  • Chisholm, C.M., Evans, A.D.B., Harlow, J.A. and Barbur, J.L. (2003). New test to assess pilot's vision following refractive surgery. AVIATION SPACE AND ENVIRONMENTAL MEDICINE, 74(5), pp. 551–559.
  • Wilhelm, B.J., Wilhelm, H., Moro, S. and Barbur, J.L. (2002). Pupil response components: Studies in patients with Parinaud's syndrome. Brain, 125(10), pp. 2296–2307. doi:10.1093/brain/awf232.
  • Wilhelm, B.J., Wilhelm, H., Moro, S. and Barbur, J.L. (2002). Pupil response components: studies in patients with Parinaud's syndrome. Brain, 125(Pt 10), pp. 2296–2307. doi:10.1093/brain/awf232.
  • Barbur, J.L., De Cunha, D., Williams, C.B. and Plant, G. (2002). Experimental studies of instantaneous colour constancy - Dynamic colour matching under rapid changes of illuminant. Proceedings of SPIE - The International Society for Optical Engineering, 4662, pp. 298–314. doi:10.1117/12.469526.
  • Barbur, J.L., Prescott, N.B., Douglas, R.H., Jarvis, J.R. and Wathes, C.M. (2002). A comparative study of stimulus-specific pupil responses in the domestic fowl (Gallus gallus domesticus) and the human. Vision Res, 42(2), pp. 249–255. doi:10.1016/s0042-6989(01)00279-6.
  • Knoblauch, K., Vital-Durand, F. and Barbur, J.L. (2001). Variation of chromatic sensitivity across the life span. Vision Research, 41(1), pp. 23–36. doi:10.1016/S0042-6989(00)00205-4.
  • Moro, S.I., Barbur, J.L. and Harlow, J.A. (2001). Light reflex component mechanisms revealed in studies of the pupil response. PERCEPTION, 30, pp. 87–87.
  • Barbur, J.L., Harlow, J.A. and Fahle, M. (2001). Mechanisms for colour-defined motion perception in human vision. INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, 42(4).
  • Walkey, H.C., Barbur, J.L., Harlow, J.A. and Makous, W. (2001). Measurements of chromatic sensitivity in the mesopic range. Color Research and Application, 26(SUPPL.). doi:10.1002/1520-6378(2001)26:1+3.0.co;2-s.
  • Barbur, J.L., Harlow, J.A., Schmid, R. and Wilhelm, B. (2000). Patterns of abnormal pupil response in patients with damaged primary visual cortex. INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, 41(4).
  • Barbur, J.L., Harlow, J.A. and Fahle, M. (2000). Effects of dynamic chromatic and luminance contrast noise on the perception of coherent motion. SPATIAL VISION, 14(1), pp. 93–93.
  • Barbur, J.L., Weiskrantz, L. and Harlow, J.A. (1999). The unseen color aftereffect of an unseen stimulus: Insight from blindsight into mechanisms of color afterimages. Proceedings of the National Academy of Sciences of the United States of America, 96(20), pp. 11637–11641. doi:10.1073/pnas.96.20.11637.
  • Barbur, J.L., Weiskrantz, L. and Harlow, J.A. (1999). The unseen color aftereffect of an unseen stimulus: insight from blindsight into mechanisms of color afterimages. Proc Natl Acad Sci U S A, 96(20), pp. 11637–11641. doi:10.1073/pnas.96.20.11637.
  • Weiskrantz, L., Cowey, A. and Barbur, J.L. (1999). Differential pupillary constriction and awareness in the absence of striate cortex. Brain, 122(8), pp. 1533–1538. doi:10.1093/brain/122.8.1533.
  • Wolf, J.E., Finlay, A., Bissessur, K., Harlow, J.A. and Barbur, J.L. (1999). Pupil latencies to sinusoidally modulated stimulus attributes. INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, 40(4).
  • Hurden, A., Smith, P., Evans, G., Harlow, A., Bunting, A. and Barbur, J. (1999). Visual performance at mesopic light levels: An empirical model. Lighting Research & Technology, 31(3), pp. 127–131. doi:10.1177/096032719903100308.
  • Barbur, J.L., Wolf, J. and Lennie, P. (1998). Visual processing levels revealed by response latencies to changes in different visual attributes. Proceedings of the Royal Society of London. Series B: Biological Sciences, 265(1412), pp. 2321–2325. doi:10.1098/rspb.1998.0578.

    [publisher’s website]

  • Gamlin, P.D.R., Zhang, H., Harlow, A. and Barbur, J.L. (1998). Pupil responses to stimulus color, structure and light flux increments in the rhesus monkey. Vision Research, 38(21), pp. 3353–3358. doi:10.1016/S0042-6989(98)00096-0.
  • Barbur, J.L., Sahraie, A., Simmons, A., Weiskrantz, L. and Williams, S.C.R. (1998). Residual processing of chromatic signals in the absence of a geniculostriate projection. Vision Research, 38(21), pp. 3447–3453. doi:10.1016/S0042-6989(98)00147-3.
  • Sahraie, A., Weiskrantz, L. and Barbur, J.L. (1998). Awareness and confidence ratings in motion perception without geniculo- striate projection. Behavioural Brain Research, 96(1-2), pp. 71–77. doi:10.1016/S0166-4328(97)00194-0.
  • Barbur, J.L., Sahraie, A., Simmons, A., Weiskrantz, L. and Williams, S.C. (1998). Residual processing of chromatic signals in the absence of a geniculostriate projection. Vision research, 38(21), pp. 3347–3353.
  • Hennelly, M.L., Barbur, J.L., Edgar, D.F. and Woodward, E.G. (1998). The effect of age on the light scattering characteristics of the eye. Ophthalmic and Physiological Optics, 18(2), pp. 197–203. doi:10.1016/S0275-5408(97)00077-X.
  • Hennelly, M.L., Barbur, J.L., Edgar, D.F. and Woodward, E.G. (1998). The effect of age on the light scattering characteristics of the eye. Ophthalmic and Physiological Optics, 18(2), pp. 197–203. doi:10.1046/j.1475-1313.1998.00333.x.

    [publisher’s website]

  • Barbur, J.L., Gamlin, P.D.R., Harlow, J.A., Wood, G. and Wolf, J.E. (1998). Comparison of pupil responses in man and monkey. PERCEPTION, 27, pp. 5–5.
  • Hennelly, M.L., Barbur, J.L., Edgar, D.F. and Woodward, E.G. (1998). The effect of age on the light scattering characteristics of the eye. OPHTHALMIC AND PHYSIOLOGICAL OPTICS, 18(2), pp. 197–203. doi:10.1016/S0275-5408(97)00077-X.
  • Weiskrantz, L. and Barbur, J.L. (1998). Measuring the unseen aftereffect of an unseen stimulus in blindsight. PERCEPTION, 27, pp. 22–22.
  • Pelah, A. and Barbur, J.L. (1998). Adaptation to visual motion and self-motion in the absence of V1. PERCEPTION, 27, pp. 22–22.
  • Barbur, J.L., Cole, V.A., Sahraie, A., Simmons, A., Weiskrantz, L. and Williams, S.C.R. (1997). A study of pupil responses in a subject with damaged primary visual cortex. Investigative Ophthalmology and Visual Science, 38(4).
  • Smith, P., Evans, G., Harlow, A., Hürden, A. and Barbur, J.L. (1997). A study of mesöpic visual performance. Investigative Ophthalmology and Visual Science, 38(4).
  • Sahraie, A., Weiskrantz, L., Barbur, J.L., Simmons, A., Williams, S.C.R. and Brammer, M.J. (1997). Pattern of neuronal activity associated with conscious and unconscious processing of visual signals. Proceedings of the National Academy of Sciences, 94(17), pp. 9406–9411. doi:10.1073/pnas.94.17.9406.

    [publisher’s website]

  • Sahraie, A. and Barbur, J.L. (1997). Pupil response triggered by the onset of coherent motion. Graefe's Archive for Clinical and Experimental Ophthalmology, 235(8), pp. 494–500. doi:10.1007/bf00947006.

    [publisher’s website]

  • Barbur, J.L., Hull, C.C., Wakefield, M. and Welford, W.T. (1997). A novel method for the photometric evaluation of searchlights. Measurement Science and Technology, 8(2), pp. 117–122. doi:10.1088/0957-0233/8/2/002.
  • Barbur, J.L., Hull, C.C., Wakefield, M. and Welford, W.T. (1997). A novel method for the photometric evaluation of searchlights. MEASUREMENT SCIENCE AND TECHNOLOGY, 8(2), pp. 117–122. doi:10.1088/0957-0233/8/2/002.
  • Sahraie, A., Weiskrantz, L. and Barbur, J.L. (1997). Awareness and confidence ratings in motion discrimination. PERCEPTION, 26, pp. 73–74.
  • Barbur, J.L., Cole, V.A. and Harlow, A.J. (1996). Investigation of pupil light reflex response components: Spatial summation & contrast gain. Investigative Ophthalmology and Visual Science, 37(3).
  • Sahraie, A., Barbur, J.L., Edgar, D.F. and Weiskrantz, L. (1996). Motion discrimination of single targets: Comparison of preliminary findings in normal subjects and patients with glaucoma. Graefe's Archive for Clinical and Experimental Ophthalmology, 234(9), pp. 553–560. doi:10.1007/BF00448799.
  • Sahraie, A., Barbur, J.L., Edgar, D.F. and Weiskrantz, L. (1996). Motion discrimination of single targets: Comparison of preliminary findings in normal subjects and patients with glaucoma. GRAEFES ARCHIVE FOR CLINICAL AND EXPERIMENTAL OPHTHALMOLOGY, 234(9), pp. 553–560. doi:10.1007/BF00448799.
  • Barbur, J.L., Cole, V.A. and Plant, G. (1996). Selective loss of 'green' sensitivity in a subject with damaged ventral occipito-temporal cortex. PERCEPTION, 25, pp. 103–103.
  • Weiskrantz, L., Barbur, J.L. and Sahraie, A. (1995). Parameters affecting conscious versus unconscious visual discrimination with damage to the visual cortex (V1). Proceedings of the National Academy of Sciences, 92(13), pp. 6122–6126. doi:10.1073/pnas.92.13.6122.

    [publisher’s website]

  • BARBUR, J., COLE, V., HARLOW, A. and SABRAIE, A. (1995). PUPIL COLOR AND LIGHT REFLEX RESPONSES IN THE PERIPHERY OF THE VISUAL-FIELD. INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, 36(4).
  • KNOBLAUCH, K., BARBUR, J. and VITALDURAND, F. (1995). DEVELOPMENT AND AGING OF CHROMATIC SENSITIVITY. INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, 36(4).
  • COLE, V., BARBUR, J. and HARLOW, A. (1995). PUPIL LIGHT REFLEX COMPONENTS ISOLATED USING LUMINANCE CONTRAST AND LIGHT-FLUX MASKING TECHNIQUES. INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, 36(4).
  • Barbur, J.L. and Sahraie, A. (1995). Motion detection of single targets: spatial and temporal requirements. PERCEPTION, 24, pp. 106–107.
  • Barbur, J.L., Harlow, A.J. and Plant, G.T. (1994). Insights into the different exploits of colour in the visual cortex. Proceedings. Biological sciences, 258(1353), pp. 327–334. doi:10.1098/rspb.1994.0181.
  • Barbur, J.L., Hess, R.F. and Pinney, H.D. (1994). Pupillary function in human amblyopia. Ophthalmic and Physiological Optics, 14(2), pp. 139–149. doi:10.1111/j.1475-1313.1994.tb00102.x.

    [publisher’s website]

  • Barbur, J.L., Harlow, A.J. and Weiskrantz, L. (1994). Spatial and temporal response properties of residual vision in a case of hemianopia. Philosophical Transactions of the Royal Society B: Biological Sciences, 343(1304), pp. 157–166. doi:10.1098/rstb.1994.0018.
  • Knoblauch, K., Vital-Durand, F. and Barbur, J. (1994). Development of chromatic sensitivity along cone-isolating axes. PERCEPTION, 23, pp. 4–4.
  • Lepropre, M., Monot, I., Delamare, M.P., Hervieu, M., Simon, C., Provost, J. … Braithwaite, D. (1994). Critical currents up to 71 000 A cm-2 at 77 K in melt textured YBCO doped with BaSnO3. Cryogenics, 34(1), pp. 63–67. doi:10.1016/0011-2275(94)90054-X.
  • Barbur, J.L., Watson, J.D.G., Frackowiak, R.S.J. and Zeki, S. (1993). Conscious visual perception without VI. Brain, 116(6), pp. 1293–1302. doi:10.1093/brain/116.6.1293.

    [publisher’s website]

  • Birch, J., Barbur, J.L. and Harlow, A.J. (1992). New method based on random luminance masking for measuring isochromatic zones using high resolution colour displays. Ophthalmic and Physiological Optics, 12(2), pp. 133–136. doi:10.1111/j.1475-1313.1992.tb00275.x.

    [publisher’s website]

  • Barbur, J. (1992). The measurement of colour discrimination using psychophysical and pupillometric methods. Ophthalmic and Physiological Optics, 12(1), pp. 82–83. doi:10.1016/0275-5408(92)90022-o.

    [publisher’s website]

  • Weiskrantz, L., Barbur, J.L. and Harlow, A.J. (1992). Spatiotemporal frequency response characteristics in a hemianope (evidence for two separate channels). Ophthalmic and Physiological Optics, 12(1), p. 99. doi:10.1016/0275-5408(92)90084-A.
  • Barbur, J. (1992). Pupil responses to grating stimuli (equal and lower luminance gratings). Ophthalmic and Physiological Optics, 12(1), pp. 82–82. doi:10.1016/0275-5408(92)90021-n.

    [publisher’s website]

  • Barbur, J.L., Harlow, A.J. and Sahraie, A. (1992). Pupillary responses to stimulus structure, colour and movement. Ophthalmic and Physiological Optics, 12(2), pp. 137–141. doi:10.1111/j.1475-1313.1992.tb00276.x.
  • Weiskrantz, L., Harlow, A. and Barbur, J.L. (1991). Factors affecting visual sensitivity in a hemianopic subject. Brain, 114(5), pp. 2269–2282. doi:10.1093/brain/114.5.2269.
  • Alexandridis, E., Leendertz, J.A. and Barbur, J.L. (1991). Methods for studying the behaviour of the pupil. Journal of Psychophysiology, 5(3), pp. 223–239.
  • Barbur, J.L. (1991). Pupillary responses to grating stimuli. Journal of Psychophysiology, 5(3), pp. 259–263.
  • Barbur, J.L. and Harlow, A.J. (1990). Pupillary responses to stimulus structure and colour-possible mechanisms. PERCEPTION, 19(4), pp. 412–412.
  • Barbur, J.L., Harlow, A.J. and Weiskrantz, L. (1990). Factors affecting residual visual sensitivity in a case of hemianopia. PERCEPTION, 19(4), pp. 364–364.
  • BARBUR, J.L., FORSYTH, P.M. and FINDLAY, J.M. (1988). HUMAN SACCADIC EYE MOVEMENTS IN THE ABSENCE OF THE GENICULOCALCARINE PROJECTION. Brain, 111(1), pp. 63–82. doi:10.1093/brain/111.1.63.

    [publisher’s website]

  • Barbur, J.L. (1988). Spatial frequency specific measurements and their use in clinical psychophysics. Clinical Vision Sciences, 2(3), pp. 225–233.
  • Barbur, J.L. and Thomson, W.D. (1987). PUPIL RESPONSE AS AN OBJECTIVE MEASURE OF VISUAL ACUITY*. Ophthalmic and Physiological Optics, 7(4), pp. 425–429. doi:10.1111/j.1475-1313.1987.tb00773.x.

    [publisher’s website]

  • Barbur, J.L., Thomson, W.D. and Forsyth, P.M. (1987). A new system for the simultaneous measurement of pupil size and two-dimensional eye movements. Clinical Vision Sciences, 2(2), pp. 131–142.
  • Barbur, J.L., Hoban, B. and Thomson, D. (1986). A NEW PHOTOGRAPHIC‐BASED SYSTEM FOR THE MEASUREMENT OF CONTRAST SENSITIVITY. Ophthalmic and Physiological Optics, 6(4), pp. 407–414. doi:10.1111/j.1475-1313.1986.tb01161.x.

    [publisher’s website]

  • Barbur, J.L., Dunn, G.M. and Wilson, J.A. (1986). The perception of moving comets at high retinal illuminance levels: a rod-cone interaction effect. Biological cybernetics, 55(2-3), pp. 145–158. doi:10.1007/bf00341930.
  • BARBUR, J.L. and FORSYTH, P.M. (1986). CAN THE PUPIL RESPONSE BE USED AS A MEASURE OF THE VISUAL INPUT ASSOCIATED WITH THE GENICULO-STRIATE PATHWAY. CLINICAL VISION SCIENCES, 1(1), pp. 107–111.
  • Barbur, J.L. (1985). Speed discrimination and its relation to involuntary eye movements in human vision. Neuroscience Letters, 54(1), pp. 7–12. doi:10.1016/S0304-3940(85)80110-5.
  • Barbur, J.L. and Saunders, J.E. (1985). DISPLACEMENT THRESHOLDS FOR MOTION DETECTION UNDER CONDITIONS OF CHROMATIC ADAPTATION. Ophthalmic and Physiological Optics, 5(1), pp. 5–13. doi:10.1111/j.1475-1313.1985.tb00630.x.
  • Barbur, J.L. and Ruddock, K.H. (1983). The analysis of scattered light effects in hemianopic and normal vision. Behavioral and Brain Sciences, 6(3), pp. 448–449. doi:10.1017/s0140525x00016885.

    [publisher’s website]

  • Barbur, J.L. (1982). REACTION‐TIME DETERMINATION OF THE LATENCY BETWEEN VISUAL SIGNALS GENERATED BY RODS AND CONES. Ophthalmic and Physiological Optics, 2(3), pp. 179–185. doi:10.1111/j.1475-1313.1982.tb00175.x.

    [publisher’s website]

  • Barbur, J.L. (1981). Subthreshold addition of real and apparent motion. Vision Research, 21(4), pp. 557–564. doi:10.1016/0042-6989(81)90101-2.
  • Barbur, J.L., Holliday, I.E. and Ruddock, K.H. (1981). The spatial and temporal organisation of motion perception units in human vision. Acta Psychologica, 48(1-3), pp. 35–47. doi:10.1016/0001-6918(81)90046-9.
  • Barbur, J.L. (1980). Quantitative Studies of Some Dynamic Visual Effects. Perception, 9(3), pp. 303–316. doi:10.1068/p090303.

    [publisher’s website]

  • Barbur, J.L., Holliday, I.E., Ruddock, K.H. and Waterfield, V.A. (1980). Spatial characteristics of movement detection mechanisms in human vision. Biological Cybernetics, 37(2), pp. 99–105. doi:10.1007/bf00364249.

    [publisher’s website]

  • Barbur, J.L. and Ruddock, K.H. (1980). Spatial characteristics of movement detection mechanisms in human vision. Biological Cybernetics, 37(2), pp. 77–92. doi:10.1007/bf00364247.

    [publisher’s website]

  • Barbur, J.L. and Ruddock, K.H. (1980). Spatial characteristics of movement detection mechanisms in human vision - II. Chromatic stimuli. Biological Cybernetics, 37(2), pp. 93–98. doi:10.1007/BF00364248.
  • BARBUR, J.L., RUDDOCK, K.H. and WATERFIELD, V.A. (1980). HUMAN VISUAL RESPONSES IN THE ABSENCE OF THE GENICULO-CALCARINE PROJECTION. Brain, 103(4), pp. 905–928. doi:10.1093/brain/103.4.905.

    [publisher’s website]

  • Barbur, J.L., Ruddock, K.H. and Waterfield, V.A. (1979). A colour-dependent abnormality in human visual detection of stimulus motion and spatial structure. Neuroscience Letters, 15(2-3), pp. 307–312. doi:10.1016/0304-3940(79)96131-7.

    [publisher’s website]

Poster

  • Subramanian, A. Chromatic sensitivity in diabetic patients treated with Ozurdex. ARVO, 2013.

Report

Professional activities

Editorial activity (3)

  • OPO editorial board, Member.
  • RCUK, Wellcome Trust, Leverhulme Trust, FFS, etc, Reviewer.
  • principal vision related journals, Reviewer.

Events/conferences (11)

  • Association for Research in Vision and Ophthalmology (ARVO). (Conference) Fort Lauderdale (USA) (2012).
    Paper: Relationship between Macular Pigment and Foveal Anatomic Architecture in an Asian Population
    Author: Dhanani, SD.
    Co-authors: Asaria, TS.; Barbur, JL.; Huntjens, B.
    Description: Recipient of the Women in Eye and Vision Research (WEAVR) student travel award.
  • Association for Research in Vision and Ophthalmology (ARVO). (Conference) Fort Lauderdale (USA (2012).
    Paper: Macular Pigment Spatial Profiles in a Healthy Asian Population
    Author: Asaria, TS.
    Co-authors: Dhanani, SD.; Barbur, JL.; Huntjens, B.
    Description: Recipient of the College of Optometrists travel award.
  • The Colour Assessment and Diagnosis System. (2012).
    Description: United Kingdom Neuro-Ophthalmology Special Interest Group
  • Clinical applications of colour assessment - separating the effects of aging and disease. Kongsberg, Norway (2011).
    Description: International Colour Vision Society
  • The contribution of the rod / melanopsin ganglion cells to the dynamic pupil light reflex response. Tuebingen, Germany (2011).
    Description: International Pupil Colloquium
  • Effects of hypoxia on contrast acuity, colour vision and the pupil response. Lyon, France (2010).
    Description: International Neuro-Ophthalmological Society
  • Variability in chromatic sensitivity in normal colour vision and in congenital deficiency. Braga, Portugal (2009).
    Description: International Colour Vision Society,
  • Factors that limit chromatic sensitivity in normal trichromacy and congenital deficiency. Rochester, NY (2008).
    Description: Optical Society of America Vision Meeting
  • Colour vision assessment in patients with acquired loss of chromatic sensitivity. Belem, Brazil (2007).
    Description: International Colour Vision Society
  • A study of the variables that affect the parameters of the Rayleigh match. Belem, Brazil (2007).
    Description: International Colour Vision Society
  • Selective Processing of Colour Categories and Other Stimulus Attributes in the Cortex - evidence from clinical studies. Tucson, AZ (2005).
    Description: Optical Society of America Vision Meeting

Keynote lectures/speeches (42)

  • Minimising variability in colour vision - consequences for occupational environments. Florence, Italy (2013). Invited keynote speaker: IX Conferenza del Colore.
  • Vision standards for visually demanding occupational environments with emphasis on colour vision. (2013). Invited keynote lecture: Society of Occupational Medicine's Annual Scientific Meeting
  • Clinical relevance of advances in vision science during the last ten years. Braga, Portugal (2013). Invited keynote speaker: International Conference of Optometry and Visual Science
  • Quantifying variability and changes caused by normal aging in normal trichromacy and congenital deficiency. (2013). Invited David Palmer Lecture at the Institute of Ophthalmology: Colour Group (GB)
  • Colour in Business and the Professions. (2012). Invited lecture: Colour Group (GB) - City University London
  • The use of advanced colour assessment for early detection of retinal disease. (2012). Invited lecture: Leipzig University Eye Clinics
  • Establishing minimum colour vision requirements in visually-demanding occupational environments. (2012). Invited lecture: Royal Society of Medicine - Colt Foundation Annual Meeting
  • Colour vision mechanisms and the factors that cause variability in normal and deficient colour vision. (2012). Invited lecture: Royal Society of Medicine- Annual Defence Services Ophthalmology Meeting
  • Scattered Light, Glare and Visual Performance. (2012). Invited Lecture: Euro-LED 2012 Conference
  • Colour vision in Aviation Course. Oslo, Norway (2012). Invited lecture: Institute of Aviation Medicine
  • Changes in visual function in AMD and mild hypoxia. Cardiff, UK (2012). Invited lecture: School of Optometry & Vision Sciences, Cardiff University
  • Light flux detection in human vision - the role of the rod / melanopsin ganglion cells. Oxford, UK (2012). Invited lecture: Clinical Neuroscience Dept., University of Oxford
  • Clinical applications of colour assessment - separating the effects of aging and disease. Cambridge, UK (2011). Invited lecture: Macular Carotenoids - AMD Meeting
  • Clinical applications of colour vision assessment - separating the effects of aging and disease. Anchorage Alaska, USA (2011). Invited lecture: Aerospace Medical Association (AsMA)
  • Colour assessment using the CAD test - description of the work that led to the CAD pass / fail limits for aviation. Dubai, UAE (2011). Invited lecture: Emirates Airways
  • Scattered light, glare and visual performance. Teddington, UK (2011). Invited lecture: National Physical Laboratory
  • Variability in colour vision - Separating normal aging from disease. Oxford, UK (2011). Invited lecture: Experimental Psychology, University of Oxford
  • Colour vision assessment in aviation -Standards and certification procedures. Santander, Spain (2011). Invited lecture: Spanish Aerospace Medical Society
  • Colour vision assessment in aviation. Seeheim (2011). Keynote lecture: The Berblinger Prize Lecturer (German Academy of Aerospace Meeting)
  • Aging, AMD and the pupil response. Giessen, Germany (2011). Invited lecture: Universitätsklinikum Gießen und Marburg
  • Assessing the severity of colour vision loss in congenital deficiency. Anchorage Alaska, USA (2011). Invited lecture: Aerospace Medical Association (AsMA)
  • Colour Vision and Visual Acuity. London, UK (2010). Keynote lecture: Maritime and Coastguard Agency Annual Meeting
  • Colour Vision - Fundamental studies and clinical applications. Arnhem, Holland (2010). Keynote lecture: Netherlands Society of Occupational Health
  • Colour vision screening and assessment of colour vision loss suitable for certification within the aviation environment. Seeheim (2010). Invited lecture: German Aerospace Medical Society Meeting
  • Visual performance in the mesopic range. London, UK (2010). Keynote lecture: "Trotter-Paterson Memorial Lecture" The Chartered Institution of Building Services Engineers
  • Analysis of European colour vision certification requirements for air traffic controllers. Phoenix, AZ (2010). Invited lecture: Aerospace Medical Association (AsMA)
  • Estimating the efficiency of the CAD test when used in aviation. Phoenix, AZ, USA (2010). Invited lecture: Aerospace Medical Association (AsMA)
  • Work that led to the CAD test Pass / Fail limits for aviation. Abu Dhabi, UAE (2010). Invited lecture: Etihad Airways
  • Setting minimum colour vision requirements within visually-demanding occupational environments. Utrecht, Netherlands (2009). Keynote lecture: The International Union of Railway Medical services
  • Pre-receptoral spectral absorption, healthy ageing and pre-clinical indications of retinal disease. Terrassa, Spain (2009). Invited lecture: Universitat Politecnica Catalunya
  • Rapid procedure for colour vision screening and assessment of colour vision loss suitable for certification within demanding occupational environments. Los Angeles, USA (2009). Invited lecture: Aerospace Medical Association (AsMA)
  • The variability of colour vision: a study of parameters that affect chromatic sensitivity. Boston, USA (2008). Invited lecture: Aerospace Medical Association (AsMA)
  • Recovery of visual and pupil response deficits in multiple sclerosis and optic neuritis. Hamamatsu, Japan (2007). Invited lecture: International Pupil Colloquium
  • Cortical modulation of retinal signals that drive pupil responses in man. Tokyo, Japan (2006). Invited lecture: International Neuro-Ophthalmological Society
  • Establishing the statistical limits of normal chromatic sensitivity. Ottawa, Canada (2006). Invited lecture: Inter Society Colour Council
  • Colour vision and the conspicuity of flashing lights. Teddington, UK (2006). Invited lecture: National Physical Laboratory
  • What the eye cannot see! Reading, UK (2006). Invited lecture: Royal Television Society Thames Valley Centre Technical Colloquium
  • The assessment of visual performance in the mesopic range. Tucson, AZ (2005). Invited lecture: Optical Society of America Vision Meeting
  • Learning from the pupil - studies of basic mechanisms and clinical applications. London (2005). Keynote lecture: GlaxoSmithKline Advanced Lectures on Clinical and Experimental Neurology, UCL
  • Colour Assessment & Diagnosis - the new CAD test. Oxford, UK (2004). Invited lecture: The Association of Aviation Medical Examiners
  • Learning from the pupil - Studies of basic mechanisms and clinical applications. Monterey, USA (2001). Keynote lecture: "The Loewenfeld Lecture" - International Pupil Colloquium
  • Light scatter in the human eye and its effect on visual performance. Aberdeen, UK Invited lecture: Medical Physics Dept, Aberdeen University