Causes of Cataracts

There are many causes of cataracts, including congenital (acquired at birth), trauma, drug toxicity and diseases such as diabetes. However, the most common types of cataracts are age-related. This natural aging process causes the lens of the eye to become cloudy and thus impairs vision. As this process progresses, glasses and contact lenses will no longer provide the clarity of vision that patients are accustomed to.