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A 31-year-old female asked:

Dear doctors. why do little flashes of light appear in my left eye in a half circle? it looked like the letter "c" flashing little squares and as it started to go away, it became wider and wider till i did not see it at all. this is the first time this h

3 doctor answers4 doctors weighed in
Dr. Alma Murphy
Ophthalmology 46 years experience
The : The most likely cause of your symptoms is a migraine. The migraine start with a visual aura which is what you probably saw. The visual aura may or may not be followed by headache. You should contact your medical doctor about your symptoms, since other causes are also possible.
Dr. Jay Bradley
LASIK Surgery 18 years experience
Flashing lights: Your description could be related to migraine headache, retinal disease, or other issues. See an eye doctor.
Dr. Richard Bensinger
Ophthalmology 52 years experience
Occipital migraine: This is the classic pattern of occipital migraine. This is of central origin (nothing wrong with your eye) and if it happens again cover each eye in turn and you will see the pattern in the same spot in each eye These last 5 min to 2 hours, are sometimes quiet entertaining and always end with no residual problems. You may get 1-3 in a lifetime but a few get them more often.

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Last updated Oct 3, 2016

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