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If
you
are finding it difficult to see because you have a cataract. A
cataract simply means a cloudy lens in your eye. The lens is the
clear part in the front of the eye that helps to focus light or an
image on the retina (the lining at the back of the eye) which is
sensitive to light. There the light or image is converted into nerve
waves or signals and these "travel" through the nerves o a certain
area of the brain that finally helps you to see the light and image.
In an early cataract, the lens may become yellow, or turn brown.
This would make things look yellow or brown through that eye. Some
cataracts turn white. In the old days, people thought it really
looked like a waterfall, or a cataract. Cataracts usually form in
both eyes. They steadily get worse. One eye will probably be more
trouble than the other. Cataracts are most common in later years,
but children and young people also get them. Sometimes, they happen
with other diseases, such as diabetes. Some drugs such as steroid
tablets can cause them. Smoking, alcohol and excessive exposure to
sunlight are three other risk factors for developing a cataract.
Some cataracts run in families. Finally, a cataract can develop
years after a trauma in the eye or after exposure to radiation. If
you have other things wrong with your eye as well as a cataract, you
may not be able to see perfectly after the operation. |
