Conjunctivitis is one of the most common nontraumatic eye complaints. The term refers to an acute inflammation of the conjunctiva, which is the outermost layer of the eye and covers the inner surface of the eyelids. The most common causes of conjunctivitis are allergic reactions and infections – viral or bacterial. Both bacterial and viral infections are contagious.
Symptoms common to all forms of conjunctivitis are: irritation, redness, and watering. The eyes may be sore, itchy, burning, and painful.