| Cataracts |
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A cataract is an opacification that develops within the normally clear lens of the eye. This is a normal part of the aging process, and almost everyone who lives long enough will develop cataracts in some form. All light entering the eye must pass through the lens. When we are born the lens is crystal clear and flexible, allowing light to be focused perfectly on the retina and allowing us to see sharp and clear. Over time, the lens turns yellow and cloudy. This cloudiness usually worsens until it scatters or blocks the light trying to enter the eye, causing glare problems and dim, blurry, or distorted vision. When the clear lens becomes milky or dirty looking, it is called a cataract. Luckily, most cataracts develop slowly over time and may take several years before seriously affecting a person’s vision. A person with cataracts cannot see clearly and colors may appear dim and faded.
Age is the most common, but not the only cause of cataracts. Other causes include injuries or trauma to the eye, birth defects, diabetes or other less common diseases, and certain medications such as prednisone or cortisone.
As cataracts develop, a person may notice problems such as difficulty focusing, blurred or distorted vision, or glare from headlights or sunlight. Your eye doctor will usually discover developing cataracts in the course of comprehensive eye exams. When the cataract begins to interfere with normal daily activities, your eye doctor will usually recommend surgery, the only known cure for cataracts. |
