| Description | These color vision tests have been designed by Dr Hahn for the screening, classifying the type and estimating the grade of color deficiency. These plates are designed to measure Red, Green, Blue, Yellow. They provide classification of strong, medium | HRR 4th edition pseudoisochromatic test from Richmond Products includes the four demonstration plates, the six screener plates and the 14 diagnostic series for a total of 24 plates. Each of these plates has its own tab for easy and clean page | This is a reduced form of the 100 Hue test and L'Anthony New Color Test. The 40 Hue test is obviously quicker to administer. It provides extensive chromatic sensitivity and gives a quantitative score. Kit includes 100 score pads. | Roth’s 28 Hue test studies the characteristic axies of dyschromatopsia similar to the Farnsworth D15, however this 28 hue test provides a greater degree of sensitivity. Case comes with a transparent base to make scoring more readable. Kit includes | Spanish HRR/Amsler combination with Spanish and English directions for both HRR and amsler tests plus occluding glasses. |