Now Playing: Human Eye
Video Text
To understand the LASIK procedure, it is important for you to understand the parts of your eye involved with sight. These structures include the cornea, iris, pupil, lens and retina.
Your cornea is a thin, clear layer on the outside of your eye. The iris, or the colored part of your eye, is a muscle that controls the amount of light going through your pupil. Behind the iris, sits the lens.
When light enters your eye, each light ray is bent twice. First, when it passes through the cornea, and again when it goes through the lens. The cornea and lens form the light rays into a beam of light that is focused directly onto your retina, where images are created.
This image is then sent from the retina, through your optic nerve, to your brain for further processing.
eMedTV Links
Copyright © 2006-2019 Clinaero, Inc.

eMedTV serves only as an informational resource. This site does not dispense medical advice or advice of any kind. Site users seeking medical advice about their specific situation should consult with their own physician. Click Terms of Use for more information.

This site complies with the HONcode standard for trustworthy health information:
verify here.