title: A new way to use the Ishihara test.
abstract: 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.
authors.affiliation: Sussex Eye Hospital, Brighton, UK.
authors.forename: D V
authors.initials: DV
authors.lastname: de Alwis
authors.forename: C H
authors.initials: CH
authors.lastname: Kon
mesh_terms: D003118:Color Perception; D003119:Color Perception Tests; D003117:Color Vision Defects / Q000175:diagnosis*; D006801:Humans