The dreaded red-eye effect is the bane of any casual photographer. All you wanted was a sweet memento of your friend’s ...

6. The 'red eye' effect in photos occurs when light from the flash bounces off the back of the eye, where there are lots of blood vessels in a layer called the choroid. 7. At the point where the optic ...

But more research is needed into the long-term effects and safety of red light therapy for the eyes. Red light therapy is gaining popularity for a variety of uses, including cosmetic skin care and ...