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You have an arteriovenous malformation (AVM). An AVM is an abnormal tangle of blood vessels in the brain. Some AVMs never burst (rupture). But some things can lead to a rupture. If you have an AVM, you were likely born with it. But most people don't know they have one until a problem develops.

It's important to get medical attention for an AVM as soon as possible. Often, immediate treatment may help prevent serious complications of some AVMs. The goal of treatment is to stop the flow of blood within the AVM and to prevent it from re-bleeding.

Here you will find out how to prepare for AVM surgery, what to expect the day of surgery, and the risks of surgery.

After AVM surgery is done, the surgeon will talk with your loved ones. You'll wake up in a recovery area. Then you'll be moved to a special unit, often an ICU (intensive care unit), where you can be closely watched.

An evaluation helps your eye health care provider learn more about your vision problems.

Cataract surgery involves removing the cataract and replacing the lens. Here are the two most common ways that cataracts are removed.

Learn about how a new lens is implanted after cataract surgery.

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