Most cataracts develop after an injury, or aging changes in the tissue that forms the eye lens. Some cataracts due to an inherited disease that causes other health problems and increase the risk of cataracts.
How does one form of cataract
Lens-shaped cataract, is behind the colored part of the eye (IRIS). The lens focuses light passing through the eye, clear images of the retina - the light sensitive membrane at the back of the inner wall of the eyeball, which behaves like a film camera. A cataract scatters light passing through the lens, prevents sharp images reaching the retina. As a result, your vision is blurred.
As we age, the lenses in your eyes less flexible, less transparent and thicker. Age-related changes in the lens causes the tissue to break down and clump together, clouding small areas of the lens. As the cataract continues to develop the ambiguity becomes denser and involves a larger portion of the lens.
A cataract can develop in one or two of your eyes.
Types of cataracts
The types of cataract are:
Cataracts that affect the center of the lens (nuclear cataract). A nuclear cataract may initially make increasingly myopic, or even experience a temporary improvement in reading vision. But over time, the lens becomes more dense and yellow clouds their vision. Nuclear cataracts, sometimes you get to see double or multiple images. As the progression of cataract, the lens may even turn brown. Yellow or gold advanced from the lens can be difficult to distinguish between shades of color.
Cataracts, which affect the edges of the lens (cortical cataract). Cortical cataract begins to pale, wedge-shaped opacities or streaks on the outer edge of the lens cortex. How slowly progresses, the streaks extend to the center and interfere with light passing through the center of the lens. Problems with reflections are common to people with this type of cataract.
Cataracts, which affect the back of the lens (posterior subcapsular cataract). A posterior subcapsular cataract starts as a small opaque zone that normally forms near the rear of the lens, right in the path of light on its way to the retina. A subcapsular cataract often interferes with your reading vision, reduces your vision in bright lights and causes glare or halos at night.
Cataracts are you born with (congenital cataract). Some people are born with cataracts or develop them in childhood. Cataracts may be the result of the mother who contracted an infection during pregnancy. They may also be due to some inherited syndromes such as Alport syndrome, Fabry disease and galactosemia. Congenital cataracts, as they are called, is not always affect vision, but if they do they are usually removed soon after detection.
How does one form of cataract
Lens-shaped cataract, is behind the colored part of the eye (IRIS). The lens focuses light passing through the eye, clear images of the retina - the light sensitive membrane at the back of the inner wall of the eyeball, which behaves like a film camera. A cataract scatters light passing through the lens, prevents sharp images reaching the retina. As a result, your vision is blurred.
As we age, the lenses in your eyes less flexible, less transparent and thicker. Age-related changes in the lens causes the tissue to break down and clump together, clouding small areas of the lens. As the cataract continues to develop the ambiguity becomes denser and involves a larger portion of the lens.
A cataract can develop in one or two of your eyes.
Types of cataracts
The types of cataract are:
Cataracts that affect the center of the lens (nuclear cataract). A nuclear cataract may initially make increasingly myopic, or even experience a temporary improvement in reading vision. But over time, the lens becomes more dense and yellow clouds their vision. Nuclear cataracts, sometimes you get to see double or multiple images. As the progression of cataract, the lens may even turn brown. Yellow or gold advanced from the lens can be difficult to distinguish between shades of color.
Cataracts, which affect the edges of the lens (cortical cataract). Cortical cataract begins to pale, wedge-shaped opacities or streaks on the outer edge of the lens cortex. How slowly progresses, the streaks extend to the center and interfere with light passing through the center of the lens. Problems with reflections are common to people with this type of cataract.
Cataracts, which affect the back of the lens (posterior subcapsular cataract). A posterior subcapsular cataract starts as a small opaque zone that normally forms near the rear of the lens, right in the path of light on its way to the retina. A subcapsular cataract often interferes with your reading vision, reduces your vision in bright lights and causes glare or halos at night.
Cataracts are you born with (congenital cataract). Some people are born with cataracts or develop them in childhood. Cataracts may be the result of the mother who contracted an infection during pregnancy. They may also be due to some inherited syndromes such as Alport syndrome, Fabry disease and galactosemia. Congenital cataracts, as they are called, is not always affect vision, but if they do they are usually removed soon after detection.
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