Some of us still remember the way cataract surgery was done in our parents' day: the hospital stay, the sand-bagging, the lengthy recovery time. The more than two million people who will have cataracts removed this year are fortunate to live at a time when cataract correction is so very convenient, safe, and comfortable. The idea behind modern cataract surgery is quite simple: the surgeon removes the clouded natural lens from the eye and replaces it with a clear lens implant, called an "IOL" (intraocular lens), that takes over the job of focusing light that enters the eye. The surgeon uses a microscope throughout the procedure. Only a very small (1/8") incision is necessary because ultrasound energy breaks up the clouded lens, making it easy to remove. The surgeon then implants an IOL in its place, and the incision seals and heals. Stitches are rarely needed. The entire process is usually finished in as few as 15 minutes. The patient is then taken to the recovery area, and after a short stay, may return home with a designated driver. Most patients experience better vision after only a few days. More than 99 percent of patients who undergo cataract removal rank their vision as significantly improved. Over time, the lens of the eye gradually loses its elasticity and its ability to change shape ('accommodate') to see close objects. This loss of accommodation is called presbyopia. Traditionally, bifocals have been prescribed to remedy presbyopia. Now, however, your doctor may recommend an advanced implantable multifocal replacement lens designed to compensate for changes in the eye and improve functional vision. One of these new technologies may make it possible for you to recapture a full range of vision…without bifocals.
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