Burning, itchy eyes that discharge a thick, sticky mucus may indicate bacterial pink eye.
Tearing, a swollen lymph node under the jaw or in front of the ear, and a light discharge of mucus from one or both eyes are often signs of viral pink eye. People with viral pink eye commonly have symptoms of an upper respiratory infection or cold as well.
Redness, intense itching, and tears in both eyes may indicate allergic pink eye.
Inflamed red bumps are usually visible on the underside of the upper eyelid in people with giant papillary conjunctivitis (GPC). This occurs mainly in contact lens wearers, particularly those wearing soft lenses.
Double vision, or diplopia, is a symptom to take seriously. Some causes of diplopia are relatively minor, but others need urgent medical attention. WebMD takes a look at the causes, symptoms, and treatments of double vision.