Quick Answer: Conjunctivitis, often called pink eye or “eye flu”, is inflammation of the conjunctiva, the thin clear membrane covering the white of the eye and lining the eyelids. It can be caused by a virus, bacteria or an allergy.

What are the symptoms?

• Pink or red eye(s)
• Watering or sticky discharge that makes the lids stick together after sleep
• Itching, burning or a gritty feeling
• Swollen eyelids and mild light sensitivity

Is it contagious?

Viral and bacterial forms are contagious and spread through contaminated hands, towels and surfaces; allergic conjunctivitis is not. Wash hands often, avoid touching your eyes and do not share towels or eye make-up.

When should I see a doctor?

See an eye doctor for pain, strong light sensitivity, reduced vision, redness in a contact lens wearer, or symptoms that do not improve. Avoid steroid eye drops unless prescribed. Read more in our guide to conjunctivitis prevention.