What is it?
In the normal eye, light passes through a clear lens before it reaches
the retina. The lens focuses light on the retina. In an eye with a cataract,
the lens becomes cloudy. This clouding distorts rays of light and prevents
light from being focused on the retina. This results in distortion of
in one's vision. The lens of the eye is composed primarily of protein.
Cataracts are caused by changes in the chemical makeup of the lens. With
age, the lens becomes thicker and less clear.
Cataracts may cause:
Poor night vision
Need for bright lights when reading
Age: as people get
older, the risk of cataracts increases.
excessive exposure to sunlight increases the risk of cataracts.
smokers have a higher chance of getting cataracts than non-smokers.
Eye Injuries: injuries
to the eye increase the risk of developing cataracts.
a doctor will look at the lens of a patient's eye to check for cataracts.
Surgery: a cataract
is removed and a new lens is inserted into the eye.