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Cataract Surgery

A cataract is a cloudy or opaque area in the normally clear lens of the eye. Depending upon its size and location, it can interfere with normal vision. Most cataracts develop in people over age 55, but they occasionally occur in infants and young children. Usually cataracts develop in both eyes, but one may be worse than the other.

The lens is located inside the eye behind the iris, the colored part of the eye. Normally, the lens focuses light on the retina, which sends the image through the optic nerve to the brain.

However, if the lens is clouded by a cataract, light is scattered so the lens can no longer focus it properly, causing vision problems. The lens is made of mostly proteins and water. Clouding of the lens occurs due to changes in the proteins and lens fibers.

Dr.Barri does phacoemulsification with lens implantation. This involves placing a tiny ultrasonic vacuum probe in the eye through a 1/8 inch incision. The ultrasound breaks up the natural lens which is simultaneously vacuumed out of the eye. The acrylic lens implant, which is folded in half like a taco, is inserted through the tiny incision and unfolds inside the eye. The prescription of the lens implant is adjusted both preoperatively and during the surgery so that it cancels out the distance prescription which may have been needed by the patient before surgery. Therefore, most patients need only reading glasses after the surgery, or in some cases, no glasses at all!

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