Ishihara

Ishi·ha·ra

adj \ˌish-ē-ˈhär-ə\

Definition of ISHIHARA

: of, relating to, or used in an Ishihara test <Ishihara plates> <the Ishihara method>

Biographical Note for ISHIHARA

Ishi·ha·ra \ē-shē-hä-rä\ Shinobu (1879–1963), Japanese ophthalmologist. Ishihara introduced his test for color blindness in 1917. The test calls for the discernment of figures or patterned lines formed from colored dots placed in a field of dots of another color. Ishihara also published studies of Daltonism and trachoma.