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Contact lenses.
- Article from:
- Clinical Reference Systems
- Article date:
- May 24, 2006
CopyrightCOPYRIGHT 2006 McKesson Health Solutions LLC. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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What are contact lenses?
Contact lenses are small, curved pieces of plastic shaped to fit your eyes to correct some vision problems, such as nearsightedness or farsightedness. Contact lenses float on the tear film in front of the cornea (the clear outer layer on the front of the eyeball). Contact lenses help your eyes focus the same way that glasses do to improve your vision.
Contact lenses can correct most of the vision problems that glasses correct. They can also correct some problems that glasses cannot.
When are they used?
Often, people wear contact lenses because they do not like how they look with glasses. Also, unlike glasses, ...