Variable neutral density (ND) filters are handy tools for photographers, in that their opacity can be adjusted simply by ...

What to know: Probably the best-known online prescription glasses brand, Warby Parker specializes in the trendiest specs. All ...

If you’re like myself, then I have every intention to wear sunglasses, but I’ve had a hard time finding places to buy a prescription pair. There’s no lack of retailers, but it can be ...

But what does that mean? The higher the prescription, the thicker the glasses' lenses will be. Even with high-index lenses, ...

“Megane wa kao no ichibu desu” (eyeglasses are ... bought a pair of handmade black titanium frames. When I showed dismay at having to wait two weeks for a prescription lens to be put in ...

Save on the best in eyewear - from sunglasses to prescription glasses. Buying new frames and lenses does not have to be expensive, when you use Ray-Ban discount codes to help you save more on your ...

One of the most common resources on the moon is considered relatively valuable here on Earth—titanium. At $10,000 a ton, it is one of the more valuable metals used in various industries ...

Donovan Harbison shares his experience as the second person on Earth to receive a titanium heart transplant. NBC News' Dr. Akshay Syal speaks with the doctors and inventor of the artificial heart ...

With six blades — two finishing blades designed to cut hair at the base, two titanium-coated blades for long and thick stubble, and two lift blades to lift and cut hairs that lay flat — the ...

The temple length is the full distance of a glasses’ arms (aka, the part that folds). The higher the prescription, the thicker the glasses' lenses will be. Even with high-index lenses ...