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Most cases of cataracts develop slowly over the years.

Cataracts are the most common cause of vision loss in people over 40 and is the leading cause of blindness in the world. They are due to an opacity of the natural (or crystalline) lens of the eye.

Causes of Cataracts

Most cataracts are the cause of aging and develop gradually. Other cataracts can develop more quickly, as in younger people or people with diabetes.


Should be during a complete eye examination with dilated pupils, the ophthalmologist will evaluate your eyes with the following procedures to make a diagnosis of cataracts.

Slit lamp examination

Your ophthalmologist will closely examine the cornea of ​​the eyes, iris, lens and the space between the iris and the cornea. With this special microscope, the doctor can examine small detailed sections of the eye, making it easier to detect abnormalities.

Retinal examination

When the eye dilates, the pupils open and the doctor can see more clearly the back of the eye. Using the slit lamp and / or an instrument called an ophthalmoscope, the doctor looks for signs of a cataract. Your ophthalmologist will also look for signs of glaucoma and other possible problems with the retina and optic nerve.

Refraction and visual acuity test

This test assesses the clarity and clarity of your vision. The ability to see letters of different sizes is evaluated individually in each eye.

Treatment of cataracts

Occasionally cataract surgery should be considered when cataracts prevent you from doing things that you want or need to do.

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