I will often take a retinoscope, and I will shine the light beam into your retina and by seeing the reflection of that eye come back at me, I can dial in lenses and find a pretty good prescription ...

It's a phenomenon called "eye black." Natural skin absorbs some light, but reflects the rest. This reflection can cause glare and impair vision. Black stripes are supposed to prevent this by ...

Electromagnetic radiation in the form of light or sound waves hit a mirror or wall, respectively, and change course. This ...

If you’ve ever suffered from dry, irritated eyes or struggled to fall asleep after a long day of staring at your computer, you may have been tempted to purchase a pair of blue-light-blocking ...

Rather than looking polished, the eye coating causes most incident light to bend at the surface an transmit through the eye instead of being reflected from it. Working with company Geomatec, ...

It can only be seen by looking into the mirror. If a surface is rough, diffuse reflection happens. Instead of forming an image, the reflected light is scattered in all directions. This may cause a ...