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Posterior Capsulotomy

What is a Posterior Capsulotomy?

Posterior Capsulotomy is a surgical procedure which is sometimes necessary to clear vision after cataract surgery. The normal lens inside the eye focuses light rays and this lens has a cellophane-like outer lining called the capsule, and inner layers known as the cortex and the nucleus. Normally, the lens is clear. When it becomes cloudy and interferes with vision, it is called a cataract and the treatment is to remove it surgically.

What Does the Capsule have to do with Cataract Surgery?

There are several ways to perform cataract surgery. One of the most frequent methods is to remove the cloudy portion of the lens, leaving the back posterior part of the capsule intact. This technique has the advantage of maintaining the normal barrier between the two inside compartments of the eye. The back part of the capsule may be used to support an intraocular lens implant which is often placed in the eye at the time of cataract surgery to replace the eye’s natural lens.

Why is a Posterior Capsulotomy Necessary?

The posterior capsule is normally clear; however, with the passage of time this capsule can become cloudy or wrinkled. It acts much like a piece of cellophane which is easy to see through when stretched tight, but harder to see through when wrinkled. This wrinkling or cloudiness can interfere with vision in ways similar to the original cataract.

If clouding of the posterior capsule interferes with your vision, your ophthalmologist may surgically make an opening in the capsule to restore normal site. This can be done using a needle or by using laser surgery. It is not necessary to remove the capsule but only to make an opening in the center to allow the clear passage of light rays. Although the laser procedure requires close and precise focusing by the ophthalmologist; the patient during the technique usually feels no pain and the results are generally instant.

While these techniques of posterior capsulotomy are usually effective, as with any surgical procedure, rare complications can occur such as hemorrhage and loss of vision.

When Should a Capsulotomy be Performed?

If your best vision falls off after cataract surgery, it is important to consult with your ophthalmologist. A capsulotomy may be recommended when your vision bothers you enough and your ophthalmologist feels the capsule is at fault.

Many people may eventually need a capsulotomy after cataract surgery, especially younger people. The need for a capsulotomy should not cause undue concern since the clouding or wrinkling is part of the body’s normal healing process in a certain percentage of patients.

Why are Regular Medical Eye Examinations Important for Everyone?

Eye disease can strike at any age.  Many eye diseases do not cause symptoms until the disease has done damage.  Most blindness is preventable if diagnosed and treated early.  Regular medical examinations by an ophthalmologist are very important.  Why an ophthalmologist?  Because only an ophthalmologist (M.D. or osteopath) can provide total care for your eyes: medical, surgical and optical.