Font Size

Definition of Refraction

Atrial Fibrillation Slideshow Pictures
Bad Bugs and Their Bites Slideshow
Understanding Ulcerative Colitis Slideshow

Refraction: In opthalmology, 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 and correct those errors.

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=5273
Last Editorial Review: 3/19/2012