Entoptic=(internal-: Optical) entoptic phenomenon are any optical images that are generated internally from within the eye. These are usually due to traction on the retina, movement of cells in the fine retinal and choroidal vessels, and movements of debris and particles within the vitreous. So one type of entoptic phenomenon is a floater. If you are experiencing such symptoms, get a retinal exam.
Answered 1/29/2014
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