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Home > Patient & Family Resources > Health Library > Cataract Surgery
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Cataract surgery helps you see better. It replaces your natural lens, which has become cloudy, with a clear artificial one.
Types of cataract surgery include:
Before surgery, you may be given medicine to help you relax. Medicine will be used to numb your eye. After surgery, you may have a bandage or shield on your eye.
Most people will see better in 1 to 3 days.
In a normal eye, the lens—which lies behind the pupil—is clear (transparent), so the pupil appears black. In an eye with a cataract, the pupil may look gray. This is because the natural lens has become cloudy, which may affect vision.
The cornea is the clear layer that covers the front of the eye. The lens is contained inside the eye's lens capsule. A cataract is a partial or complete cloudiness in the lens.
A small cut (incision) is made in the eye so a small instrument (phaco probe) can reach the cataract.
The probe uses sound waves (ultrasound) to break the cataract into small pieces. Then the surgeon uses suction to remove the cataract from the eye.
A variety of artificial lenses (intraocular lenses or IOLs) are available to replace your natural lens. Your doctor can help you choose the type that may work best for you.
After the cataract is removed, an intraocular lens (IOL) may be placed inside the lens capsule. The back of the lens capsule (posterior capsule) keeps the IOL in place.
The intraocular lens (IOL) takes the place of the eye's natural lens. The incision does not usually require stitches.
Before cataract surgery, the cloudy lens can be seen through the pupil. After cataract surgery, the pupil appears black because the intraocular lens is clear.
Before you leave the outpatient center, you will get the immediate eye care that you need after surgery. The surgeon will review the symptoms of possible complications, eye protection, activities, medicines, and required visits. They will also tell you what to do for emergency care if you need it.
The eye that was operated on may be bandaged for 1 night after surgery. You may wear a protective shield over the eye at night for about a week. There is normally no significant pain after surgery.
You most likely will need to see the doctor for checkups 1 or 2 days after surgery, and again within a few weeks after surgery. If you have any complications, you should visit sooner and more often.
Most people get a new eyeglass prescription about 6 weeks after surgery.
The decision to have this surgery is based on whether:
Cataract surgery is successful for most adults. Surgery may also improve vision in infants who have cataracts.
Both phacoemulsification cataract surgery and femtosecond laser-assisted cataract surgery (FLACS) work about equally well for treating cataracts in adults. FLACS is more expensive, but it may be a better option in some cases. For example, people who are going to have multifocal lenses placed may choose FLACS.
People who have surgery for cataracts usually have:
Although the risk is low, surgery for cataracts does involve the risk of partial to total vision loss if the surgery is not successful or if there are complications. Some complications can be treated and vision loss reversed, but others cannot. Complications that may occur with cataract surgery include:
Complications that may occur some time after surgery include:
Current as of:
April 29, 2021
Author: Healthwise StaffMedical Review: Kathleen Romito MD - Family MedicineE. Gregory Thompson MD - Internal MedicineAdam Husney MD - Family Medicine
Current as of: April 29, 2021
Author: Healthwise Staff
Medical Review:Kathleen Romito MD - Family Medicine & E. Gregory Thompson MD - Internal Medicine & Adam Husney MD - Family Medicine
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