A cataract is an opacity or a clouding of the lens of the eye. It is one of the most common leading causes of visual impairment. This however can be treated by removal of the lens of the eye or cataract extraction, and then replacing the lens removed, with an intraocular lens. Many people suffer from blurred vision due to a cataract and if undetected, glasses or contact lenses cannot improve vision.
Symptoms include cloudy vision. Sometimes there is glare, and double vision with one eye. Cataracts are usually caused by age. Our natural lens ages and changes in color, as we get older. There are however other causes of cataracts. These include those who have them at birth (congenital), those who develop them in young adulthood (developmental), those acquired from diseases like diabetes mellitus, and those that result as a complication of the intake of some medications like steroids.
There is no medical treatment for a cataract. Once it affects your function in daily activities, it would be recommended to remove the lens surgically and replace it with an intraocular lens. Vision may then be restored.
To know more about cataracts and how they are removed, go to American Eye Center’s cataract page