•Signs and symptoms of all types of conjunctivitis include watery eyes with reddened conjunctiva and sensitivity to light.
•Bacterial conjunctivitis involves one or both eyes, has mucopurulent drainage, grittiness of the eyes, crusting, and may cause the eye lids to stick together.
•Viral conjunctivitis involves one or both eyes, is often associated with a respiratory infection, and causes watering and itching.
•Allergic conjunctivitis occurs in both eyes, involves itching and a foreign body sensation.
•Opthalmia neonatorum is conjunctivitis of a newborn after being exposed to gonorrhea or chlamydia in the birth canal.
•Stye is an infection of the sabaceous sweat glands of the eye.
•Keratitis is inflammation and infection of the superficial layers of the cornea.