Conditions list medically reviewed by George Krucik, MD, MBA
Cluster headaches are severely painful and occur in cycles. Read more for tips on how to treat and relieve them.
Conjunctivitis, commonly known as "pink eye," is an infection or swelling in the outer membrane of your eyeball. Blood vessels in your conjunctiva, a thin membrane that…
Learn about what causes allergies, the different types of allergies, and how they're treated.
Scleritis is a disorder in which the sclera becomes severely inflamed and red. Scleritis is believed to be the result of the body's immune system overreacting.
Uveitis is swelling of the middle layer of the eye, which provides blood to the retina. Read about causes, symptoms, and treatment.
The cornea is a thin, transparent dome that covers your eye's iris and pupil. The iris is the colored part of your eye, and the pupil is the black center. All light…
A hyphema is a collection of blood in the eye, between the cornea and the iris. It is painful, and requires immediate medical attention.
Entropion is when your eyelid rotates inward. Your eyelashes rub against your eye and cause redness, irritation, and abrasions on the cornea of your eye.
A corneal ulcer is an open sore that forms on the cornea. It's usually caused by an infection. Even small injuries to the eye can lead to infections.
There are a lot of conditions and medications that can cause dry eye syndrome. Read about the causes and treatment options.
Glaucoma is an eye condition that damages your optic nerve. Learn what causes it.
Learn about sarcoidosis and its causes, symptoms, diagnosis, treatment, and potential complications.
Toxic shock syndrome is a rare but serious condition caused by a bacterial infection. Read more about its causes and symptoms and when to see a doctor.
Allergic conjunctivitis is an eye inflammation caused by an allergic reaction to substances like pollen. Your eyes may become red, itchy, and watery.
Juvenile rheumatoid arthritis is the most common type of arthritis in children. Learn about juvenile rheumatoid arthritis symptoms, diagnosis, and treatment.
Ankylosing spondylitis is a form of arthritis that primarily affects your spine. It causes severe inflammation of the vertebrae that might eventually lead to chronic…
Weil's disease is a severe form of the bacterial infection leptospirosis. Learn how to lower your risk of getting this potentially life-threatening illness.
Ebola disease is a rare, often fatal illness. One of its late-stage symptoms is a bleeding rash over the entire body.
Rosacea is a chronic skin disease that affects more than 16 million Americans. The cause of rosacea is still unknown, and there is no cure.
Measles is a very contagious infection of the respiratory system. One of its several symptoms is a sore or swollen throat.
This feature is for informational purposes only and should not be used to diagnose. Please consult a healthcare professional if you have health concerns.