Conjunctivitis
Conjunctivitis is a common condition that causes redness and inflammation of the thin layer of tissue that covers the front of the eye (the conjunctiva).
Read about the symptoms of conjunctivitis. The two most common symptoms are eye redness and a discharge.
Find out what causes conjunctivitis. The three most common causes are infection, allergic reaction or eye irritation.
Find out how conjunctivitis is diagnosed. Your GP will ask you about your symptoms, examine your eyes and may recommend further tests, such as a swab test.
The recommended treatment for conjunctivitis will depend on whether it's caused by infection, an allergic reaction or an irritant, such as a stray eyelash.
Complications of conjunctivitis depend on whether the condition is an infection (infective conjunctivitis) or an allergic reaction (allergic conjunctivitis).