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HealthInfo Canterbury

Symptoms of conjunctivitis

Symptoms of conjunctivitis vary. You may have one or more of the following:

Discharge or more fluid from your eye is also common. It is often yellow or green if you have an infection, but it can be clear or white. Allergies often cause watery eyes.

Conjunctivitis can affect one eye or both of your eyes.

Your vision is not normally affected. Your vision might be slightly blurred because of discharge at the front of your eye. However, this clears when you blink. If your vision is blurred and doesn't clear when you blink, get your eyes checked urgently to find out what the cause is.

When to see a doctor

See a doctor if you have any of the symptoms listed below, if the conjunctivitis doesn't settle or improve within a week, or if you are worried that you have anything other than common conjunctivitis.

Also see a doctor if you keep getting conjunctivitis, as this can be a sign of a blocked tear duct.


See a doctor urgently if:

On the next page: Treating conjunctivitis

Written by Canterbury optometrists. Adapted by HealthInfo clinical advisers. Endorsed by clinical director, Ophthalmology, Canterbury DHB. Last reviewed November 2019.


Page reference: 142403

Review key: HICJC-49685