What is "flash" in PVD or RD？

[cranium]

I am a 29 old male with high myopia (-9.25D). I have floaters in my eyes for a long time, but my ophthalmologist says the retina looks fine (a year ago). I recently noticed that sometimes (maybe once a few days) when I am reading or watching computer screen, a small, bright spot would occur in the visual field. It persists for a fraction of a second and disappears. There doesn't seem to be any correlation with head/eye movement, or blinking the eye, and the position where it occurs seems rather random. Some people suggested that it may indicate PVD. I just wonder what the typical "flash" experienced by PVD or RD patients is like. Is it always very bright, like one would see with a camera flash? Or can it be just a tiny bright spot? Does it really "flash", i.e.,goes on and off at some frequency over a period of seconds or minutes? Or does it just appear, stay there, and fade away in a short time?

[John C Hagan III, MD, FACS, FAAO]

-

[walkietalkie]

Yeah. The real scary flash is kind of like camera flash, very sudden, very bright intense light. Can make you jump. Split second duration, though the after image may linger for a bit while.

[John C Hagan III, MD, FACS, FAAO]

Your descripition is most likely an entopic phenomena. Read about them using the search feature.

JCH MD