Testing a Popular Smartphone Application for Colour Vision Assessment in Healthy Volunteer Subjects.

Neuro-ophthalmology
Michael Joseph FliotsosAllen O Eghrari

Abstract

We aimed to compare the Ishihara pseudoisochromatic colour vision test with a colour vision test from a popular smartphone application (EyeHandBook [EHB]) using digital image processing to simulate colour vision deficiencies. Three digital versions of the Ishihara and EHB slides were created: full colour; 32 bit- greyscale (removing all colour information); and blue channel (to simulate red-green colour vision deficiencies). Twenty healthy volunteers were shown each colour-edited plate. The answers they reported were compared with what would be expected for that colour-simulation scenario based on the answer key provided in the Ishihara booklet ("expected" answer). There were nine plates that had comparable patterns between the EHB and Ishihara test. We found no significant difference in the overall proportion of "expected" answers for the full colour (p = .35), 32 bit-greyscale (p = .39) and blue channel (p = .22) conditions. There were significant differences between the proportion of "expected" answers among six individual colour- edited plates (p < .05 for each). Colour vision assessment from the EHB is distinct from comparable Ishihara plates. Clinical scenarios that require serial assessment of colour vision may benefit f...Continue Reading

References

Mar 15, 2016·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Stephen J DainLeslie Wong
May 6, 2016·Clinical & Experimental Optometry : Journal of the Australian Optometrical Association·Stephen J Dain, Ali AlMerdef
Dec 23, 2016·Graefe's Archive for Clinical and Experimental Ophthalmology = Albrecht Von Graefes Archiv Für Klinische Und Experimentelle Ophthalmologie·Andrew PouwAlfredo Sadun
Jan 19, 2018·Neuro-ophthalmology·Anvesh AnnadanamAllen O Eghrari
Feb 14, 2018·Journal of Neuro-ophthalmology : the Official Journal of the North American Neuro-Ophthalmology Society·Omar K OzgurRudrani Banik

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