Dictionary > Refraction

Refraction

Definition
noun, plural: refractions
(1) (physics) The bending of wave (e.g. light) as it travels through a refractive medium.
(2) The measure of change in the direction of a wave that travels across two media of dissimilar refractive indexes.
(3) (ophthalmology) The capacity (of the eye) to refract light.
Supplement
In ophthalmology, the ability of the eyes to refract light is measured and evaluated to determine if there is a need to prescribe the use of corrective lenses.
Related form(s): refract (verb), refractive (adjective)
Related term(s):

  • Index of refraction
  • Double refraction
  • Angle of refraction


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