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Eye Surgery |
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Eye Care is a serious concern that is often neglected by people who lack health insurance.
Our vision is one of those wonderful gifts most of us take for granted. The only time we even have cause to think about our vision as such is when we think about a blind person who has no vision at all, or our own vision begins to fail us. Being aware of the importance of protecting your vision can help you to avoid problems with it in the future.
Cataract
It is the clouding of the normally transparent lens in the eye. It lowers the degree of transparency and thus the objects seen will become blur.
Cataract is a common cause of poor vision. It usually develops gradually when people get older, but this can also happen to youngsters or be present at birth. In the early stages of the cataractous process, it is a normal part of aging and is not considered as a disease at all. For mild cases, it hardly affects vision, but for severe cases, only light and dark can be seen. Without effective treatments, cataracts account for as much as 50% of the world's mass blindness and it is one of the world's leading causes of blindness.
Glaucoma
It is an ailment that includes any eye diseases which cause an increase in pressure in the eye. The eye is filled with a |
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clear fluid -- humor -- which helps maintain the eye's shape and nourishes the lens and cornea. The ciliary body continuously secretes new humor and the excess is drained through the front of the eye. In glaucoma, the fluid does not drain away properly; the pressure inside the eye accumulates, pinching the blood vessels to the optic nerve. As the nutrients cannot be transported the nerve cells via the blood vessels, the nerve cells slowly die, causing progressive loss of vision which can lead to total blindness.
Retinal Detachment
Retinal detachment occurs when the retina becomes separated from the back of the eye as a result of the spreading of a small tear. This can happen slowly over a period of weeks, or very suddenly, within only a few hours. Without appropriate treatments, patients may suffer from total blindness. Some eye injuries may cause retinal detachment. With age, the vitreous body will solidify and contract, and detach from the retina. If the detachment is sudden and vigorous, it will cause a tear in the retina, resulting in retinal detachment.
Uveitis
This is the inflammation of a part, or all of the uvea, or uvela tract. The uvea includes the choroid, ciliary body and iris of the eye. It occurs when microfilariae penetrate the sclera and enter the eyeball, and it is classified according to the anatomic location of the inflammation in the uveal tract. Nutrients that the eyeball need are transported by the vast vessel network in the uvea, that's why when the uvea is infected, other parts of the eye will also be affected. As the uvea covers the whole eyeball, uveitis is usually more severe than the other eye diseases.
Diabetic retinopathy / Diabetes mellitus
It is caused by diabetes, a group of disease in which the body is unable to regulate the amount of sugar ( glucose ) in the blood. Diabetes can affect the other organs and also the eye. The most serious eye problem associated with diabetes is retinopathy. This happens when the tiny blood vessels in the retina weaken or swell, causing blood leakage, new vessel formation and other changes that damage the nerve cells which transmit images to the brain. In the early stage, traces of blood and fat deposit will appear on the retina, but the patient's vision will be normal.
Strabismus / Squint
Strabismus refers to the condition of the eyes being misaligned so that only one eye at a time fixes on the visual target. If left untreated, it will produce monocular visual disability or blindness.
In all cases of strabismus, one eye does the sighting while the other eye looks somewhere else. In a few people the sighting eye and turning eye will alternate roles each periodically doing the sighting. A common misconception is that strabismus is caused by weak muscles. While on rare occasions a paralyzed or misconnected muscle is the culprit, the muscles attached to the eyeball are very strong and the range of movements quite remarkable. The real problem is that the two eyes just won't work jointly as the brain's passion to avoid double vision.
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Medical Destinations
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