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Some people don't get any symptoms, especially the first time they have a herpes simplex eye infection. But it's important to go to the doctor if you do have symptoms. There is a small chance that herpes simplex eye infection can damage your eyesight.

Symptoms you might get include:¹

• A swollen eyelid, perhaps with a rash across it
• Redness in the eye
• Pain or discomfort in the eye
• Pain when looking into bright light
• Watering eyes
• Blurred eyesight.

If you have any of these symptoms, you should see your doctor. If you don't get treatment, there's a chance herpes simplex might damage your eyesight.

If your doctor thinks that your symptoms are because of herpes, he or she will probably refer you to a specialist eye doctor called an ophthalmologist.

The doctor will examine your eye with a microscope and a lamp that shines light into your eyes. You may have drops of dye put into your eye. This helps the doctor see any problems in the eye.

This information is for educational use only, and is not a substitute for prompt professional medical advice. Readers should always consult a physician or other professional for advice and treatment. ©BMJ Publishing Group Limited 2008. All rights reserved.