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Browse or search the National Eye Institute’s (NEI) resources about dozens of eye conditions and diseases. Get the basics about symptoms, diagnosis, and treatments — or go in depth to see all the details.
If you or a loved one has a rare eye disease, keep in mind that you are not alone. Hundreds of thousands of people in the United States are living with some type of rare eye disease. Find out more about your condition and how to get help.
Uveitis is a general term describing a group of diseases that produce swelling and destroy eye tissues. These diseases can cause minor or severe vision loss. Learn more about uveitis, including its causes, symptoms, diagnosis, and treatment and research.
Browse or search our resources about dozens of eye conditions and diseases. Get the basics about symptoms, diagnosis, and treatments — or go in depth to see all the details.
Glaucoma is a group of eye diseases that can cause vision loss and blindness by damaging a nerve in the back of your eye called the optic nerve. The symptoms can start so slowly that you may not notice them. The only way to find out if you have glaucoma is to get a comprehensive dilated eye exam.
The cornea is the clear outer layer at the front of the eye. There are several common conditions that affect the cornea. Read about the types of corneal conditions, whether you are at risk for them, how they are diagnosed and treated, and what the latest research says.
Dry eye is common — nearly 16 million Americans have dry eye. Dry eye can happen if you spend a lot of time looking at your computer, tablet, or smart phone. If severe dry eye isn’t treated, it can sometimes damage your cornea, the clear outer layer at the front of your eye
Ocular histoplasmosis syndrome (OHS) is an eye condition that can develop in people who have a lung infection called histoplasmosis. If you have histoplasmosis, the infection can move from the lungs into the eyes, leading to vision loss.
A cataract is a cloudy area in the lens of your eye. More than half of all Americans age 80 and older either have had cataracts or have had surgery to get rid of cataracts. Learn about the types, symptoms, and causes of cataracts and how your doctor will diagnose and treat them.
Age-related macular degeneration (AMD) is an eye disease that can blur your central vision. It happens when aging causes damage to the macula — the part of the eye that controls sharp, straight-ahead vision. The macula is part of the retina (the light-sensitive tissue at the back of the eye).