When a cataract is removed, the "capsule," or bag, of the natural lens is left behind to hold the new lens in place. This capsule shrink wraps around the lens and may eventually cloud over, giving similar symptoms to the original cataract. This cloudiness can be corrected with a short, simple and painless surgical laser procedure called a Posterior Capsulotomy that can be performed in the clinic. You may notice an immediate improvement in your vision and should see improvement within twenty-four hours.
All surgical procedures have risks, but a posterior capsulotomy is relatively safe. You may notice some “floaters” after the surgery, which are normal. Any flashing lights, however, should be reported to your doctor. There is a slight risk of increased intra-ocular pressure after the procedure. This side effect, should it ocur, is easily treated with eyedrops. There is also a very small chance, about one in one thousand, of the retina detaching. The risks of complications, although slight, are why it is important to keep all of your follow-up appointments after the procedure, including your one week post-operative appointment to check your pressure and let your doctor look inside your eye.