Cataracts develop because of the unique configuration of the lens. The lens has no direct blood supply like other parts of the body. Rather it relies on the aqueous humor in the eyeball and behind the lens. The aqueous humor provides the lens with nourishment and antioxidants.
Cataracts, which are effectively cell damage, develop because of exposure to free radicals. This is exacerbating because the lens cannot get the antioxidants that could reduce this damage as it has no direct blood supply. Free radicals are thought to lead to a number of disease and ailments in the body, including many cancers. For the eye, one of these ailments is cataracts.
There is no single cause of cataract (the clouding of the eye's lens). A number of risk factors seem to have an impact. There are some risks that can be reduced by a change in lifestyle, and some that can't. Sight savers is raising awareness of the risks, and providing treatment where possible.
When your eyes work properly, light passes through the cornea (the protective dome of clear tissue over the front of your eye) and the pupil (the hole in the center of your eye) to the lens.
The lens is located just behind the iris (the colored part of your eye) and the pupil. It's shaped thicker in the middle and thinner near the edges. Tiny ligaments, which are bands of tough tissue fiber, hold it in place. The lens focuses light that passes through the cornea and pupil, producing clear, sharp images on the retina — the light-sensitive membrane on the back inside wall of your eyeball that functions like the film of a camera. As a cataract develops, the lens becomes clouded, which scatters the light and prevents a sharply defined image from reaching your retina. As a result, your vision becomes blurred.
A poor diet and a poor digestive system will cause a build up of free radicals. Avoid eating poor quality food, like foodstuff cooked in saturated and Tran’s fats. They are thought to increase the build up of free radicals.
If you are looking for a single vision cataract surgery always ask about the quality of staff, billing procedure, quality of pre and post operating care, explanation of cataract surgery by eye surgeon himself, different options available for types of lenses and the outcome of cataract operation. This will help you in judging the best available facility (eye hospital).
And if you have chosen your eye hospital then feel free to consult and ask your eye doctor about the number of eye operations conducted, type of intraocular lens insertions, general cleanliness and infection free environment. Also ask for pre and after cataract consultancy support available.
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