In-depth

Behcet's disease

Behcet's disease affects several body systems and causes a variety of signs and symptoms. Find out what it is and how it's treated.

Blepharitis

Chronic daily headaches

Cluster headache

Cluster headaches usually occur repeatedly on one side of your head and cause intense pain that feels like a stabbing sensation in your eye.

Drug addiction

Dry eyes

Dust mite allergy

Dust mite allergy, an immune system reaction to inhaled dust mite "debris," causes hay fever symptoms and may cause allergy-induced asthma.

Ebola virus and Marburg virus

Ectropion

Ectropion — Comprehensive overview covers symptoms, causes, treatment of a sagging or outwardly turned eyelid.

Glaucoma

Glaucoma is a group of eye conditions that, left untreated, can seriously damage your optic nerve and lead to blindness.

Hangovers

Hyperthyroidism

Hyperthyroidism occurs when your thyroid gland produces too much of the hormone thyroxine — speeding up your metabolism and sometimes leading to serious complications.

Iritis

Iritis is inflammation that affects the colored area of your eye called the iris. This serious condition can affect your vision if left untreated.

Keratitis

Keratitis is an inflammation of the cornea — the clear, dome-shaped tissue on the front of your eye that covers the pupil and iris.

Pink eye (conjunctivitis)

Retinoblastoma

Retinoblastoma is a cancerous tumor of the eye that generally affects young children. If retinoblastoma is detected early, a cure is possible.

Rubella

Sarcoidosis

Sarcoidosis starts in your lungs but can cause inflammation in any part of your body. It can last a lifetime, or disappear in a few years.

Toxic shock syndrome

Tularemia

Uveitis

Wegener's granulomatosis

Wegener's granulomatosis is an uncommon disease that causes blood vessel inflammation that can damage lungs, kidneys and other organs. Untreated, it can be fatal.

Whooping cough

Yellow fever

March 02, 2013