Red eye history and symptoms
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Red eye Microchapters |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Ogheneochuko Ajari, MB.BS, MS [2]
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Symptoms
There are three main danger symptoms in a red eye: reduced visual acuity, severe ocular pain, and photophobia (light sensitivity).
Blurry vision
Blurry vision often indicates serious ocular disease. If the blurriness improves with blinking, it suggests ocular surface discharge of some variety.
Severe pain
Those suffering from conjunctivitis may report mild irritation or scratchiness, but never extreme pain. Severe pain is an indicator of keratitis, corneal ulceration, iridocyclitis, or acute glaucoma.
Photophobia
Photophobia, or fear of light, is usually an indication of iritis.
Coloured halos
Coloured halos are an indication of corneal edema, and are a warning that acute glaucoma may be present.