Medical Dictionary

Stiles-Crawford effect

noun Stiles-Craw·ford effect \ ˌstīlz-ˈkrȯ-fərd- \

medical Definition of Stiles-Crawford effect

:an optical phenomenon in which light passing through the center of the pupil is perceived as more intense than light passing through the periphery of the pupil

Biographical Note for stiles-crawford effect

  • Stiles, Walter Stanley (1901–1985), and Crawford, Brian Hewson (1906–1991), British physicists. Stiles spent almost all of his career as a research scientist at the National Physical Laboratory in Great Britain. He was the author of numerous papers on illuminating engineering and physiological optics. He published book-length studies on thermionic emission (1932), the science of color (1967), and the mechanisms of color vision (1978). In 1933 Stiles and Crawford, a fellow researcher at the National Physical Laboratory, published a paper on the optical phenomenon now known as the Stiles-Crawford effect.

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