Photopsia, which is common among people over 40, can lead to blindness due to retinal detachment if left untreated.

Roughly speaking Doctor explains in detail the risks of ``photopsia,'' where you see light when you close your eyes. Doctors say people over 40 and people with severe myopia need to be especially careful. Retinal detachment can be avoided if you receive laser treatment at an ophthalmologist early on. Read article