1. Health
You can opt-out at any time. Please refer to our privacy policy for contact information.

Discuss in my forum

Cycloplegic Refraction


Updated June 11, 2014

Written or reviewed by a board-certified physician. See About.com's Medical Review Board.

Definition: A cycloplegic refraction is a procedure used to determine a person's refractive error by temporarily paralyzing the muscles that aid in focusing the eye. Cycloplegic eye drops are used to temporarily paralyze or relax the cililary body, or focusing muscle, of the eyes.

Cycloplegic refraction is sometimes used when testing the vision of young children. Children sometimes subconsciously accommodate their eyes during an eye exam, making the results invalid.

A cycloplegic refraction is also performed as part of a laser vision correction or LASIK consultation to determine the absolute refractive error before proceeding with laser eye surgery.

  1. About.com
  2. Health
  3. Vision
  4. Vision Glossary
  5. Eye Exam Equipment
  6. Cycloplegic Refraction - Definition in Vision

©2014 About.com. All rights reserved.

We comply with the HONcode standard
for trustworthy health
information: verify here.