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Definition Return to top
Presbyopia is an age-associated progressive loss of the focusing power of the lens. This results in difficulty seeing objects close-up.Causes, incidence, and risk factors Return to top
The focusing power of the eye, which depends upon the inherent elasticity of the lens, is gradually lost as people age. This results in a slow decrease in the ability of the eye to focus on objects nearby.
People usually notice the condition around age 45, when they realize that they need to hold reading materials further away in order to focus on them. Presbyopia is a natural part of the aging process and affects everyone.
Symptoms Return to top
Signs and tests Return to top
A general eye examination will be performed, including measurements to determine a prescription for glasses or contact lenses.
Tests may include:
Treatment Return to top
Presbyopia can be corrected with glasses or contact lenses. In some cases, the addition of bifocals to an existing lens prescription is sufficient. As the ability to focus up close worsens, the prescription needs to be changed accordingly.With the use of contact lenses, some people choose to correct one eye for near and one eye for far. This is called "monovision" and eliminates the need for bifocals or reading glasses, but can interfere with depth perception. There are also newer contract lenses that can correct for both near and far vision with the same lens.
New surgical procedures can also provide solutions for those who do not want to wear glasses or contacts.
Expectations (prognosis) Return to top
Vision can be corrected with glasses or contact lenses.
Complications Return to top
If uncorrected, progressive vision difficulty can cause problems with driving, lifestyle, or work.
Calling your health care provider Return to top
Call your health care provider or ophthalmologist if eye strain or decreased ability to focus on close objects occurs.
Prevention Return to top
There is no proven prevention for presbyopia.
Update Date: 4/22/2004 Updated by: Dominique Brooks, M.D., M.B.A., Ophthalmologist. Review provided by VeriMed Healthcare Network.
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Page last updated: 28 October 2004 |