People usually go blind progressively. First, they have a vision impairment, and then it goes to blindness. But blindness doesn’t mean full darkness; some can see light and shadows. Here are the main causes of blindness.

Cataracts

1

This happens due to eye lens becoming cloudy. It leads to blurry vision, faded colors, etc. More than 22 million Americans suffer from cataracts in one or both eyes. The chances of cataracts increase as you get old. The first stage of treatment of this disease is to use special glasses and brighter lighting. Patients who are in the advanced stage need surgery to replace their lens.

Glaucoma

2

It occurs when the fluid pressure inside one or both eyes start to increase slowly. This pressure causes damage the retina and the optic nerve. As a result, peripheral vision decreases slowly. If vision is lost due to glaucoma, it cannot be reversed. But it can be controlled with the use of eye drops.

Macular Degeneration

3

It is the gradual deterioration of the nerve endings in the retina which are essential for sharp central vision. It is a very common cause of blindness among the elder people. There is no permanent solution for this condition. But with treatment, the progress can be slowed down.

Diabetic Retinopathy

4

This takes place with the damage caused by diabetes starts to affect the retina. The blood vessels that support the retina can affect diabetes negatively. This causes vision loss and damage to the retina. If diabetes is controlled, the sight can be protected.

Most of the cases of blindness are caused by eye diseases. Even though these are the main causes of blindness, it doesn’t guarantee that you will get blind. There are treatments available for each of these diseases. If not fully cured, these conditions can be controlled to prevent blindness.

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