Please note, the video cannot be used to accurately screen for colour vision deficiency, as colours are not accurately represented. Please use the original Ishihara test for this.
Please note, the video cannot be used to accurately screen for colour vision deficiency, as colours are not accurately represented. Please use the original Ishihara test for this.
Comments (2)
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Hubert01 March 2023
Does anyone know the clinical reasons why ishihara tested at 75cm
Would it make any difference to the results
A -2.50D myope would see clearly @40
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Frank Eperjesi26 May 2022
Why not just go straight to the first pair of diagnostic plates? Those people that can see both digits on each plate with the same intensity will not have a colour vision deficiency. People with red or green deficiency can be detected in the usual way but without having to use the screening plates.
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