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Cataracts are changes in clarity of the natural lens inside the eye that gradually degrade visual quality. The natural lens sits behind the colored part of the eye (iris) in the area of the pupil, and cannot be directly seen with the naked eye unless it becomes extremely cloudy. The lens plays a crucial role in focusing unimpeded light on the retina at the back of the eye. The retina transforms light to a neurologic signal that the brain interprets as vision. Significant cataracts block and distort light passing through the lens, causing visual symptoms and complaints. Cataract development is usually a gradual process of normal aging, but can occasionally occur rapidly. Many people are unaware that they have cataracts because the changes in their vision have been so gradual. Cataracts commonly affect both eyes, but it is not uncommon for cataracts in one eye to advance more rapidly. Cataracts are very common. Experts have estimated that visual disability associated with ca

What Are Cataracts?  Cataracts are a painless clouding of the internal lens of the eye. Because they block light from passing through the lens, cataracts make it difficult to see clearly and can even cause blindness over time. Cataracts are progressive, meaning they worsen with time. Most cases occur in older people, but sometimes they can be seen in younger people as well. How Your Vision Is Affected By Cataracts Light enters the eye and passes through the lens. The lens of the eye focuses light onto the retina, which transmits visual signals through the optic nerve to the brain. Clouding of the lens due to cataracts results in blurring of the images you see. Other problems with the eyes can also cause blurry vision, but cataracts produce some characteristic symptoms. Cataract Symptom: Blurry Vision The most common symptom of cataracts is seeing blurry images at any distance. People may describe their vision as foggy, cloudy, or filmy. Cataracts get worse with time, an

Having cataracts is often compared to looking through a foggy windshield of a car or through the dirty lens of a camera. Cataracts may cause a variety of complaints and visual changes, including blurred vision, difficulty with glare (often with bright sun or automobile headlights while driving at night), dulled color vision, increased nearsightedness accompanied by frequent changes in eyeglass prescription, and occasionally double vision in one eye. Some people notice a phenomenon called "second sight" in which one's reading vision improves as a result of their increased nearsightedness from swelling of the cataract. A change in glasses may help initially once vision begins to change from cataracts; however, as cataracts continue to progress and opacify, vision becomes cloudy and stronger glasses or contact lenses will no longer improve sight. Cataracts are usually gradual and usually not painful or associated with any eye redness or other symptoms unless they becom

Cataracts are changes in clarity of the natural lens inside the eye that gradually degrade visual quality. The natural lens sits behind the colored part of the eye (iris) in the area of the pupil, and cannot be directly seen with the naked eye unless it becomes extremely cloudy. The lens plays a crucial role in focusing unimpeded light on the retina at the back of the eye. The retina transforms light to a neurologic signal that the brain interprets as vision. Significant cataracts block and distort light passing through the lens, causing visual symptoms and complaints. Cataract development is usually a gradual process of normal aging, but can occasionally occur rapidly. Many people are unaware that they have cataracts because the changes in their vision have been so gradual. Cataracts commonly affect both eyes, but it is not uncommon for cataracts in one eye to advance more rapidly. Cataracts are very common. Experts have estimated that visual disability associated with