Posts Tagged ‘refraction’

An eye exam is a comprehensive test of your eyesight undertaken by an optometrist. Using advanced medical technology, the optometrist can determine if the patient requires vision correction with eyeglasses and also has the ability to diagnose a number of eye diseases like glaucoma or cataracts. The average eye exam often lasts 30 minutes to an hour depending on the patient. There are several vision tests that an optometrist may give during the course of an eye exam including: Refraction - in this test you will be asked to read letters of varying size projected on a screen placed 20 feet away. You will view these letter through an instrument with several lenses and be asked to read out loud each letter that you see. This part of the eye exam will help obtain an estimate of your ...