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Hello and welcome I'm Dr Chip
Did the web disappear?
OK--then likely it was another floater and the flashed of light, like floaters, are from what's called a vitreous detachment which also is part of the vitreous humor problem
The only concern here is that this may be a signal of an impending retinal detachment so I have to advise you to see an ophthalmologist as soon as possible to get this checked out
Please let me know if you need any more information
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