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Herpes Simplex Keratitis

Herpes Simplex Keratitis
Herpes Simplex Keratitis

To look for damage to the cornea, a doctor may put fluorescein eye drops in the eyes. Fluorescein is a dye that stains the damage in the cornea a bright green so the doctor can see it. The damage resembles a tree branch as seen in this photo.

ARGENTUM/SCIENCE PHOTO LIBRARY