![]() While phosphenes themselves are not considered dangerous, their persistence may indicate a more serious underlying issue that requires medical attention. People usually undergo phosphenes as a result of eye trauma, compression or inflammation of the optic nerve or friction against the retina. The light may appear as dots, squiggles, swirls or flashes with bright colors, which is why many refer to the experience as “seeing stars.” Phosphenes are visual phenomena that give the impression of seeing light without an actual light source.
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