The human eye is much like a camera. Your eye has a clear lens through which light passes for you to see. And like a camera, when the lens of the eye is cloudy, not as much light can pass through the lens. Clouding of the human eye lens is called a cataract.
Cataracts cause a progressive, painless loss of vision.
Causes The lens clouds naturally as we age, so people over age 65 usually see a gradual reduction of vision. Cataracts can also be caused by complications of other diseases such as diabetes and glaucoma, and by side effects of certain medications such as steroids, infection, trauma or hereditary disorders. Top Symptoms Common symptoms of cataracts include hazy or blurred vision, increased glare from bright lights or sunlight, seeing halos around lights, light sensitivity, night vision difficulty, double vision in one eye or temporarily improved near vision. When cataracts become visually significant and glasses no longer provide satisfactory vision, surgery is the only option to restore vision. Modern cataract surgery is a highly successful operation that is done on an outpatient basis.