One of the most common ailments that affect elders the most is cataract. Cataract develops gradually and can occur in one or both eyes and if not treated in time can cause blindness. Most cataracts are not visible to the naked eye, but in some cases, a dense cataract can make the pupil appear white. A cataract can be defined as a dense, cloudy build up of protein masses on the eye lens. This obstructs the light falling on the retina and does not allow the retina to form a clear image.
Advancing in age is one of the most common causes of cataracts. Along with this, there are several other factors that play a role in the development of cataracts as well. These include smoking,exposure to ultraviolet radiation, long term use of steroids, trauma, radiation therapy and diabetes. Anything that triggers an overproduction of chemically altered oxygen molecules in the body can increase your risk of suffering from this condition. Hypertension and a family history of cataracts can also put you at a higher risk of developing cataracts. Poor nutrition or a diet that is deficient in antioxidants can also put you at a high risk of suffering from this condition.
Cataracts can be categorized on the basis of where and how they develop in the eye. This categorization is based on location:
Categorization based on how they develop:
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