What is a cataract?
A cataract is the clouding of the normally clear lens of the eye. It can be compared to a window that is frosted or “fogged” with steam.
Common symptoms of a cataract include:
- A painless blurring of vision
- Glare or light sensitivity
- Frequent eyeglass prescription changes
- Needing brighter light to read
- Poor night vision
- Fading or yellowing of colors
What causes cataracts?
The most common type of cataract is related to aging of the eye. Other causes include family history, medical problems such as diabetes, injury to the eye, medications such as steroids, long-term unprotected exposure to sunlight.
Cataracts cannot be prevented, and there is no proven treatment other than surgery. However, cataracts may be delayed or slowed by these precautions:
- Avoid too much exposure to ultraviolet light (sunlight). Wear a hat and use sunglasses.
- Keep your blood sugar under control if you have diabetes.
- Eat a healthy diet .
- Avoid smoking and excessive use of alcohol.
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