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Got an ache or pain? Have a question about a prescription or over-the-counter drug? Looking for some FREE medical advice?
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 Question:
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					| Someone i know has been seeing flashes of light in his left eye. I was wondering what may be causing it. Thanks 
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 Answer:
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					| We regret there is insufficient information to respond to the inquiry; indeed anything that results in a change in vision is more than sufficient reason to have the eyes checked by either your GP as a first step and /or an ophthalmologist. 'Flashes of light' mean different things to different people but even as commonly understood may have benign explanations or serious ones - as is frequently the case, diagnosis relies on a careful history and examination and your friend is therefore very much recommended to see his/her doctor. 
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