Cataracts

In simple terms, cataracts develop when the clear lens of the eye becomes progressively cloudy. The cloudy lens inhibits or diminishes the passage of light to the retina, making everyday activities increasingly difficult. The condition can be compared to a window that is frosted or "fogged" with steam.

Although they are most often part of the natural aging process, cataracts sometimes have other causes including metabolic changes, injury, various forms of radiation, toxic chemicals and certain drugs.

Cataracts are treated with an outpatient surgical procedure that takes only a short time. The cloudy lens is removed and replaced with a clear lens implant. In most cases, daily activities, such as driving and reading, can be resumed almost immediately, usually within a day or two. Vision is restored to normal, and in some cases, such as when light adjustable lenses or premium intraocular lenses are utilized, patients can see well without the use of glasses.

Symptoms:

Patients with cataracts often experience the following symptoms:

• Blurring of vision

• Glare, or sensitivity to light

• Double vision in one eye

• Frequent changes in eyeglass prescription

• Difficulty in reading in low light

• Declining night vision

• Fading or yellowing of colors

Detection:

Adults over the age of 40 should schedule routine eye examinations on an annual basis to determine whether cataracts or other eye disorders are present. A thorough examination by an ophthalmologist or qualified eye care professional usually includes:

• A visual acuity test to measure clarity at various distances.

• Pupil dilation to examine the eye for other eye problems.

• Tonometry, a standard procedure to measure fluid pressure inside the eye.