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 has acquired a dubious reputation in recent years, frequently blamed for everything from disrupted sleep patterns to digital eye strain. This high-energy light, emitted abundantly by our ...

What is blue light? “All the light we see is made up of different wavelengths of light,” says Vivienne Sinh Hau, MD, an ophthalmologist at Kaiser Permanente in Riverside, California. “Certain ...

We are in the holiday season, and colorful lights are everywhere inside and out and will be for a little while longer. It is a really beautiful time of year. We have recently had some serious icy ...