- Risley prism
- a prism that rotates in a metal frame marked with a scale; used in testing ocular muscles for imbalance.
Medical dictionary. 2011.
Risley prism
Look at other dictionaries:
Risley prism — Ris·ley prism (rizґle) [Samuel Doty Risley, American ophthalmologist, 1845–1920] see under prism … Medical dictionary
Prism (optics) — For other uses, see Prism (disambiguation). A plastic prism In optics, a prism is a transparent optical element with flat, polished surfaces that refract light. The exact angles between the surfaces depend on the application. The traditional… … Wikipedia
prism — A transparent solid, with sides that converge at an angle, that deflects a ray of light toward the thickest portion (the base) and splits white light into its component colors; in spectacles, a p. corrects ocular muscle im … Medical dictionary
Risley — Samuel D., U.S. ophthalmologist, 1845–1920. See R. rotary prism … Medical dictionary
prisma de Risley — Eng. Risley s prism Prisma que se emplea para el examen del desequilibrio de los músculos oculares … Diccionario de oftalmología
RPP — abbr. Risley Prism Pair … Dictionary of abbreviations
