A new way to use the Ishihara test.
The Ishihara plates are widely used as a test for colour vision. Originally designed for the purpose of detecting congenital red-green colour blindness, the test also has some value in demonstrating acquired colour vision defects. There are, however, several disadvantages in the present arrangement of the plates. A modification of the test, involving the rearrangement of the order of the plates, is presented which, together with a new recording chart, simplifies both the administration and the interpretation of the test.
de Alwis
D V
DV
Sussex Eye Hospital, Brighton, UK.
Kon
C H
CH
D003118:Color Perception; D003119:Color Perception Tests; D003117:Color Vision Defects / Q000175:diagnosis*; D006801:Humans