Blue light therapy uses light to treat certain conditions on or just under the skin. It’s considered a pain-free procedure. Blue light therapy becomes photodynamic therapy when it uses a combination ...

Blue light usually comes from the sun but also from digital screens and LED lights. Some experts believe artificial sources may be causing eye damage in humans, but animal studies are inconclusive.

The Standard's journalism is supported by our readers. When you purchase through links on our site, we may earn an affiliate commission. We all know that prolonged sun exposure can cause premature ...