Flashing lights in the eyes may be a symptom ofretinal detachment, which is a medical emergency because it can lead to vision loss if not treated promptly with surgery. A detached retina happens when part of the retina, a thin membrane that contains light receptors, separates from the back o...
What do flashing lights in vision look like? “Floating shadows or dark spots in vision, bright flashing lights, looks as though they have stared at bright light or the sun and can see spots floating, painless, stringy or like cobwebs, like flashes from a camera or lightning.”—Dr. Hoe...
pressure on the retina can result in flashing lights appearing in one or both of your eyes. The pressure can be caused by rubbing your eyes, coughing too hard, or getting bumped or hit on the head. Additional symptoms includedry eyes, headaches, blurred vision, and sore or burning eyes. ...
I know this because I have another security camera with night vision in the room that maintains an exact bright light on all the time from the small red IR lights around its camera lens. I have actually been looking at the iPhone and my live camera feed simultaneously and could not see t...
aHigh blood sugar and high blood pressure both can damage the sensitive structures in your eyes and threaten your vision. Diabetic retinopathy -- caused by damage to the blood vessels in the eye -- is the biggest cause of blindness in adults. Blurred vision, spots, lines, or flashing ...
the road in front of the linear indication is very important. It is one of the effective means to set contour markers continuously. Contour markers can make drivers know the road condition ahead of time through the reflection of car lights. The outline signs set on both sides ...
vision is difficult because of low natural light levels and because of the eyes' difficulty in adapting quickly to the changing from dark to light and vice versa, along with the above-noted shifting of the eyes' spectral response at such times. Such factors, combined with the concentration dem...