Refraction is the bending of light when it goes from one medium to another so, when a ray of light passes through a prism it deviates.

A pair of the best blue light blocking glasses could be just what you need to protect your eyes from eye strain and prevent those pesky screen-related headaches from occurring. If, like me, you're ...

Refraction occurs when light changes direction as it passes, e.g., from air into water or glass. Negative refraction, however, is a counterintuitive effect where light in a medium bends in the ...

Prism glasses may help some people with eye issues such as double vision. Learn how they work, potential side effects, and who needs them.

For the first time, scientists have demonstrated that negative refraction can be achieved using atomic arrays - without the need for artificially manufactured metamaterials. Scientists have ...

Learn about refraction, ray diagrams and how convex lenses bend light rays with this guide for KS3 physics students aged 11-14 from BBC Bitesize.

Refraction is when the cornea and lens of your eye bend incoming light so that it’s concentrated on the retina, which is in the back of your eye. This allows you to see.

Blue light from computer screens and smartphones stimulates eyes and can cause sleep problems — but a new analysis finds blue light blocking glasses may not be much help.

“Refractive errors are the number one cause of vision loss worldwide,” says Dr. Anat Galor, an eye surgeon at the University ...