Unexpected flashes of light in your eye can be alarming, ... (a clear, jelly-like substance) inside the eye shrinks and detaches from the retina, ... you might look at the issue head-on-literally.

Flashes look like flashing lights, streaks of lightning, or stars in your field of vision. Flashes are an optical illusion caused by the vitreous pulling on the light-sensitive retina.

Flashes look like sudden flashes of light and are "usually harmless and not a sign of anything serious, especially if: you've had them for a long time they're not getting worse ...

Flashes look like sudden flashes of light. They're usually harmless and not a sign of anything serious, ... (PVD), where the gel-like substance inside the eye begins to change.

Mild floaters are a normal part of aging. Floaters that suddenly occur more often, won’t go away, or happen with other eye symptoms, may mean a serious problem.

Doctor urges anyone who has floater in eye to 'not ignore it' ... the NHS website says, and flashes look like sudden flashes of light. However, he warned: ...