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An electroencephalogram (EEG) is a test to find problems in the electrical activity of the brain. Read on to learn what happens before, during, and after the test.

After a brain injury, a person may be less able to coordinate sequential activities, process thought, and use language. At first, therapy may be provided by medical professionals and therapists. But often longer-term support by family and friends is needed. Read on to learn more.

Sometimes an injury damages the part of the brain that controls balance, sight, or hearing. Or memory loss may keep a person from remembering certain sights, sounds, smells, or tastes. Some people have trouble handling abstract ideas, like time, or they may simply lose track of what they are doing.

A traumatic brain injury can affect other parts of the body too. As a result, people who have a brain injury may have little or no control over their bodies. Read on to learn more.

Learn about the problems that may need a craniotomy.

Learn about the types of procedures used in craniotomy.

Months or even years after cataract surgery, your vision can become cloudy again. A laser treatment called YAG capsulotomy can help.

Presbyopia is the loss of close-up focusing. With age, the lens in the eye hardens and can't change its shape as easily. It then can't focus clearly on close objects. This makes them look blurry.

Contact lenses can correct presbyopia. They focus the image back onto the retina. This way, you can see an object clearly. There are two kinds of contacts you can choose from.