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|  | Cataracts are a natural part of the eye's aging process and can begin developing as early as age 40. This condition may occur as a result of chemical changes in one eye or both. Four out of five people over 60 develop cataracts, and while it cannot be prevented, proper treatment can minimize and correct visual impairment.
One of those advances, phacoemulsification, is derived from the Greek word "phako," referring to the eye's natural lens, and "emulsify," to break down a liquid. During the procedure, the ophthalmologist peers through a microscopic device to make a small incision in the cornea (transparent, front portion of the eye).
Then an ultrasonic, vibrating probe is inserted to liquefy the clouded lens. The lens cavity is then irrigated and the liquefied lens particles are removed through a miniature vacuum on the probe's tip.
Afterward the surgeon may place an intraocular lens into the lens cavity. This is a permanent, plastic lens replacing the cataract-clouded lens, which provides light-focusing power similar to that of the eye's natural lens. Finally, a single stitch closes the incision.
Cataract surgery can be performed on an outpatient basis. With this brief, 10- to 20-minute procedure, patients can expect to resume normal activities immediately, or certainly within the week—which is much sooner than recovery times for previous procedures. After several weeks, the patient can be fitted with eyeglasses or contact lenses to further improve vision, if necessary.
Because each lens replacement option offers certain advantages and challenges, it's important for a cataract patient to discuss the options with an eye care professional. An ophthalmologist can help the patient determine what will best suit the patient's lifestyle and vision needs.
Source: Better Vision Institute
This information is in no way a substitute for a personal examination by an eyecare professional. To find a certified Carl ZEISS Vision practice near you, use our
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