- photorefractive
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of or relating to a change in refractive index in the presence of light
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photorefractive
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Photorefractive keratectomy — (PRK) and Laser Assisted Sub Epithelial Keratectomy (or Laser Epithelial Keratomileusis [ [http://www.nice.org.uk/guidance/index.jsp?action=byID o=11193 Laser epithelial keratomileusis (LASEK) ] Accessed June 30 2008.] ) (LASEK) are laser eye… … Wikipedia
Photorefractive effect — The photorefractive effect is a nonlinear optical effect seen in certain crystals and other materials that respond to light by altering their refractive indexcite book author=J. Frejlich title=Photorefractive materials : fundamental concepts,… … Wikipedia
photorefractive — pho·to·re·frac·tive (fō tō rĭ frăkʹtĭv) adj. Of or relating to a material that undergoes a change in refractive index when subjected to light or an electric field. * * * … Universalium
photorefractive — pho·to·re·frac·tive (fo″to re frakґtiv) pertaining to the refraction of light … Medical dictionary
photorefractive — pho·to·refractive … English syllables
photorefractive — ˌ adjective Etymology: phot + refractive : relating to, caused by, or having an index of refraction that changes relative to the intensity of incident light * * * photorefractˈive adjective Of a material whose refractive index changes in response … Useful english dictionary
photorefractive keratectomy — noun Date: 1986 surgical removal of part of the corneal surface using an excimer laser in order to correct for myopia compare radial keratotomy … New Collegiate Dictionary
photorefractive keratectomy — ▪ surgical method common surgical method that reshapes the cornea (the transparent membrane covering the front of the eye (eye, human)) to improve vision in patients affected by farsightedness ( hyperopia) or nearsightedness ( myopia). In… … Universalium
photorefractive keratectomy — noun a laser eye surgery technique to correct vision … Wiktionary
Photorefractive keratectomy (PRK) — A kind of laser eye surgery designed to change the shape of the cornea to eliminate (or reduce) the need for glasses and contact lenses. The laser is used to remove the outer layer of the cornea and flatten the cornea. The flattening of the… … Medical dictionary
