Chromatic Screener

Ishihara Color Discrimination Test

Automated pseudoisochromatic plate assessment backed by custom convolutional neural network digit verification.

Protocol & Methodology

You will be presented with a sequence of 20 calibrated Ishihara-style plates. Each plate conceals an Arabic numeral (0 to 9) rendered in chromatic hues against confusion dot matrices.

Deutan Screening (Types 1 & 4)

Evaluates green cone (M-cone) photopigment variations using green versus orange and yellow dot distributions.

Protan Screening (Types 2 & 3)

Evaluates red cone (L-cone) photopigment variations using red versus green and neutral gray dot distributions.