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A female asked:
Dx - optic nerve hyperemia. blurred vision in left eye for more than a year. possible causes? can be from use of zaditor (ketotifen) for allergies?
1 doctor answer • 1 doctor weighed in

Dr. Jon Fishburnanswered
Ophthalmology 32 years experience
Ophthalmologist : Make sure you see an ophthalmologist for evaluation. You may have congenital blurring of optic disc, disc drusen, hypoplasia, but with the blurred vision, I'd be worried about something different. A year-long history without worsening is not typical of inflammatory optic neuritis. Compression of nerve by tumor? Zaditor™ is not the cause. See an ophthalmologist.
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2.2k viewsAnswered >2 years ago
Last updated Oct 3, 2015
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