Presbyopia - Topic Overview
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If you already use glasses or contacts to correct nearsightedness, farsightedness, or astigmatism, you'll need a new prescription that will also correct presbyopia. You may wish to use bifocals, in which distant vision is corrected at eye level and close vision is corrected at the bottom. Other options include trifocal glasses, which can correct for distant, near, and middle vision; progressive lenses, which give a smooth transition between distant, middle, and near vision; bifocal contact lenses; or monovision contact lenses, which correct distant vision in your dominant eye and close vision in your weaker eye. Your prescription may have to be changed over time as presbyopia gets worse.
If you don't want to wear glasses or
contacts, surgery may be an option to correct presbyopia. Procedures being used
to treat presbyopia include laser-assisted in situ keratomileusis (LASIK) and
photorefractive keratectomy (PRK). Both of these surgeries use lasers to
reshape the
cornea
of your eye. Laser surgery cannot give you both
distance and near vision in the same eye. But your doctor can correct one eye
for distance vision and the other eye for near vision.
Another option is clear lens extraction with an intraocular lens implant, in which the natural lens is removed and an artificial one is implanted to replace it. Some lens implants correct either distance or near vision. Others (called multifocal implants) correct both near and distance vision.
None of these surgeries will restore perfect vision-you will have to compromise. For example, you may have surgery to correct distance vision and then use reading glasses for near vision. Or you may have one eye adjusted for near vision and one for distance vision, which would reduce your depth perception. New procedures that reverse presbyopia are being developed and tested.
Will your vision continue to get worse?
Near vision begins to decline due to presbyopia at around age 40. Your eyes continue to lose the ability to accommodate-requiring changes to prescriptions for glasses or contacts-until you reach your early 60s. Then accommodation stabilizes and your vision should stop getting worse.
WebMD Medical Reference from Healthwise
