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Refract: In ophthalmology, to determine the bending of light that takes place within the human eye.
Refractive errors include nearsightedness (myopia), farsightedness (hyperopia), and astigmatism. Lenses can be used to control the amount of refraction, correcting those errors.
re·fract (r-fr kt) tr.v. re·fract·ed, re·fract·ing, re·fracts. 1. To deflect (light, for example) from a straight path by refraction. 2. To alter by viewing ...
Definition of REFRACT. transitive verb. 1. a: to subject (as a ray of light) to refraction b: to alter or distort as if by refraction <to refract that familiar world ...
tr.v. , -fract·ed , -fract·ing , -fracts . To deflect (light, for example) from a straight path by refraction. To alter by viewing through a medium: "In the Quartet ...
verb (used with object) 1. to subject to refraction . 2. to determine the refractive condition of (an eye). Origin: 1605–15; < Latin refrÄctus, past participle of ...
transitive verb. to cause (a ray or wave of light, heat, or sound) to undergo refraction; Optics to measure the degree of refraction of (an eye or lens)