| Description | Accepted by leading authorities as a simple and accurate method for discovering congenital color blindness of two type total color blindness and red/green blindness. This book is used for children and the illiterate. | Farnsworth D15 test is used to separate medium and strong color defect vs normal. Farnsworth D15 come in plexiglas boxes which permit the patient to select the sequence of chips. Then the box is closed and the selections can be read thru the bottom | 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 | New saturated disc test for detecting and grading acquired color deficiency. Requires only two minutes for quantitative estimation of saturation thresholds for bluish pigment colors. Highly sensitive to and specific for differences between normal and | Spanish HRR/Amsler combination with Spanish and English directions for both HRR and amsler tests plus occluding glasses. |