Cataract disease is a disease
that typically affects the elderly population. Cataract was the cause of
blindness in the world. Cataracts are easily identified by looking at the mist
on the normally transparent lens of the eye and contain a lot of water, so that
light can penetrate it easily. The foggy lens of the eye will cause the light
from outside can not be forwarded to the center of vision. So that the shadow
of an object can not "see".
Many factors affect the risk of cataract
disease, including the body's nutritional needs are not fulfilled, excessive
sun exposure, diabetes mellitus (diabetes) and aging.
What causes cataracts?
The majority (nearly 90%) of
cataract disease in the elderly appears along with the declining power of
vision and reading. Although it can actually be treated, cataracts are the
leading cause of blindness in the world.
The new
visibility affected after cataract develops around 3-5 years. Therefore,
cataract patients are usually aware of his illness after entering a critical
stage.
The initial symptoms are felt by
the patient felt itching in the eyes, tears easily come out, impaired vision at
night, and could not withstand the glare of sunlight or lamplight. Furthermore,
the patient will see the film like a cloud in front of his eyesight. The cloud
that covers the lens of the eye is finally getting close and covers all parts
of the eye. When you have reached this stage, the patient will lose his
eyesight.
Generally there are 4 types of
cataract as follows:
1. Congenital, is a cataract that occurred since
the baby is born and develops in the first year of his life. This type of
cataract is very rare.
2. Traumatic, is a cataract that occurs because of
an accident on the eyes.
3. Secondary cataracts are caused by the
consumption of drugs such as prednisone and corticosteroids, as well as
diabetics.
4. Age-related cataract is the most common type of
cataract. Symptoms generally glare if exposed to sunlight and difficult to
drive a vehicle at night.
Treatment of cataracts is currently growing rapidly, many
methods were developed operations such as planting an artificial lens (intra-ocular
lens) and laser surgery, so the longer the cataract surgery is a safe surgery
with satisfactory results.
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