Cataracts A cataract is a clouding of a normally clear lens within the eye and is a very common visual impairment. As a cataract develops and the lens becomes more and more opaque, it becomes more difficult for an object to be properly focused onto the retina. This results in an unclear image. As the cataract progresses and vision becomes seriously impaired or completely lost, the cataract can be removed surgically. There are many causes of cataracts including heredity, birth defects, trauma to the eye, or other diseases and medical conditions. However, the most common form of cataracts is caused by the natural aging process and can occur as early as age 40. Due to the fact that a cataract can develop very slowly, a person may not be aware of its presence. Symptoms include hazy, fuzzy, or blurred vision, a sensitivity to light or glare, double vision, and frequent changes in prescriptions. Treatment Surgical removal of a cataract is the only effective treatment method. Upon removal of the now opaque lens, an alternate replacement is required to return proper focus to the eye. This can include the use of eyeglasses, contact lenses, or intraocular lens implant (IOL) which is a surgically implanted replacement lens. Cataract surgery is very successful in offering a return to useful vision. However, it is a surgical procedure, and as such, is subject to risks and complications. Although excellent results are expected, they cannot be guaranteed. Back