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If your vision has become cloudy or things you see are not as bright as they used to be, a cataract may have developed in one or both of your eyes. A cataract is a clouding of the eye’s naturally clear lens.

The amount and pattern of cloudiness within the lens can vary. If the cloudiness is not near the center of the lens, you may not be aware that a cataract is present. Cataracts are a common cause of vision loss, especially as we age, but they are treatable.

What are the Symptoms of Cataracts?

The only way to know if you have cataracts for certain is when your ophthalmologist does a dilated eye exam. Get a baseline exam at age 40, when early signs of disease and changes in vision may start to occur. Your doctor will let you know how often you should return for follow-up exams.

At any point, if you have symptoms or risks for eye disease, see your doctor. Because your risk for cataracts and other eye diseases increases as you get older, starting at age 65 you should see your doctor every year. A complete eye examination will rule out any other condition that may be causing blurred vision or eye problems.

Most age-related cataracts develop gradually. As a result, you may not immediately notice changes in your vision when cataracts first develop.

Diagram of a normal eye without cataract
Diagram of an eye with cataract

In time, you may have symptoms such as:

Cataracts occur as part of the aging process, so everyone is at risk eventually. By age 75, about 70% of people will have cataracts.

These factors increase the risk of developing cataracts:

What Can I Do to Protect my Vision?

Wearing sunglasses and a hat with a brim to block ultraviolet sunlight may help to delay cataract. If you smoke, stop. Researchers also believe good nutrition can help reduce the risk of age-related cataracts. They recommend eating green leafy vegetables, fruit, and other foods with antioxidants. If you are age 60 or older, you should have a comprehensive dilated eye exam at least once every two years.

If your vision is only slightly blurry, a change in your eyeglass prescription may help for a while. However, if you are still not able to see well enough to do the things you like or need to do after the change in eyeglass prescription, cataract surgery may be considered.

Cataract surgery is performed as an outpatient procedure and does not require an overnight stay. There are usually a few restrictions, and you will be able to resume your normal activities almost immediately.

What To Expect

Before surgery, the length of your eye will be measured in what is called an A-scan, and the curve of your cornea will be measured in a technique called keratometry. These measurements help your doctor select the proper lens implant power for your eye.

After the cloudy lens has been removed, the surgeon will replace it with an intraocular lens (IOL) implant made of acrylic. This new lens allows light to pass through and focus on the retina. The IOL becomes a permanent part of your eye.

Cataract Surgery Steps

Most people who wear bifocals or reading glasses for near vision may still need to wear glasses after cataract surgery for reading, and, in some cases, even for distance. If you choose to have a multifocal IOL, your dependence on glasses may be minimized or, in some cases, eliminated completely.

Post Cataract Haze

Once a cataract is removed, it does not grow back. However, a clear membrane behind the IOL may get hazy causing decreased vision and increased glare. This may occur as soon as a few weeks after surgery, but it is usually one to two years after surgery before the haze becomes significant.

When the haze is significant, a laser procedure can be performed (YAG capsulotomy) to clear it. This is a one-time procedure that is painless, safe, and generally performed in our office, although it may be scheduled in an outpatient center based on patient needs and physician preference.

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