The LASIK, (laser in situ keratomileusis), process has been used for ten years now, to treat myopia, hyperopia and astigmatism. In 1995, with the approval of PRK, the procedure became more widely available in the United States as an off-label use of the excimer laser. In this procedure, the surgeon cuts a hinged corneal flap composed of the outermost 20-25 percent of the cornea's thickness. The computer-controlled excimer laser then reshapes the underlying exposed cornea. This minimizes discomfort and promotes rapid recovery. The surgeon then puts the flap back into place.
A cataract occurs when the normally clear lens in your eye becomes cloudy, often impairing vision. Clouded vision may make it more difficult for you to read, drive a car or see as clearly as you once did. For most people cataracts, which develop slowly over time, are a natural result of aging. About half of Americans between the ages of 65 and 75 have cataracts to some degree. The key to living with cataracts is knowing when it's time not to live with them anymore.
Glaucoma affects approximately 3 million Americans and over 120,000 will go blind from this disease. Glaucoma ranks as a leading cause of blindness worldwide. And when it does not cause blindness, it can severely impair vision. There are two major types of glaucoma: Other variations include congenital glaucoma, pigmentary glaucoma and secondary glaucoma. There are no warning signs of Chronic glaucoma. About half of Americans with chronic glaucoma don't even know they have it. Glaucoma gradually reduces your peripheral vision.