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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.
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).
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.
Graves’ eye disease happens when swelling around the eyes makes them bulge out. It’s caused by Graves’ disease, and it’s also called GED, Graves’ ophthalmopathy, or thyroid eye disease (TED). Graves’ eye disease is often mild and may go away on its own.
Diabetic retinopathy is an eye condition that can cause vision loss and blindness in people who have diabetes. It affects blood vessels in the retina (the light-sensitive layer of tissue in the back of your eye). If you have diabetes, it’s important to get a comprehensive dilated eye exam at least once a year.
Dry eye happens when your eyes don’t make enough tears to stay wet. Learn about the symptoms, causes, diagnosis, and treatment of dry eye.
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.
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. Many people who have histoplasmosis don’t know it.
Amblyopia (also called lazy eye) is a type of poor vision that happens in just 1 eye. It develops when there’s a breakdown in how the brain and eye work together and the brain can’t recognize the sight from one eye. Learn about the symptoms, causes, diagnosis, and treatment of lazy eye.