What is commonly misdiagnosed as pink eye?
Henry Morales
Updated on May 16, 2026
Iritis may be misdiagnosed as pink eye, which is concerning because iritis can lead to damage, including vision loss. It can be treated with medication.
What can mimic pink eye?
Pink eye, also known as conjunctivitis, is an infection of the thin layer of tissue covering the white part of the eye and lining the inner eyelid.
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There are other eye conditions that can be mistaken for pink eye, including:
- Allergies.
- Styes.
- Iritis.
- Keratitis.
- Blepharitis.
How do you tell if it's pink eye or something else?
True conjunctivitis can be either viral or bacterial, but inflamed eyes can also mean something else. Waking up to a red, inflamed eye that might even be hard to open can be terrifying.
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Hallmarks of pink eye include:
- Redness.
- Discharge in one eye or the other, which may become crusty.
- Itching.
- Tearing.
- A gritty sensation.