Because infrared wavelengths pass through the eyelid more easily than visible light, subjects wearing upconversion contacts could see in infrared with eyes closed.

Colored contact lenses look like a fun way to change up your look. Sometimes called costume or decorative lenses, they give your eyes a different color. Some even reshape your pupils for a cartoon ...

Researchers have developed experimental contact lenses that use nanoparticles to convert the invisible wavelengths of near-infrared light into visible colors ...

Discover how nanoparticle-infused contact lenses let you see infrared light, even with closed eyes, offering potential for various applications.

Using expires contacts can put your eye health at risk. Here's what to know.

More people are permanently changing their eye color. How risky is it? Using lasers, doctors can alter cornea pigments. The FDA doesn't regulate this growing practice — is it worth it?