If you’re a photography enthusiast, you probably own quite a few cameras, but the chances are your “good” one will have ...

They can be made from: Plastic Plain metal A mix of plastic and ... Sports goggles with impact-resistant polycarbonate lenses: You can use them for basketball, baseball and softball (fielding ...

Prescription eyeglasses can cost as much as $1,000, and most have plastic lenses, which scratch more easily than glass. Clearly, you need to protect your investment. But should you clean lenses ...

While playing with that, he realized that an inexpensive glass or plastic lens could stand in for the precision-machined metal mandrel which is usually used in this technique. Pretty soon he was ...

Sunglasses can serve a much bigger purpose, whether medical purposes or just protection from the sun and harmful lights when ...

five separate lenses — that had accumulated underneath her upper eyelid. An “otherwise healthy” 33-year-old woman arrived at a plastic surgery clinic in China, wanting to repair her ...

In reality, they're a relatively new medical marvel -- the first modern plastic contact lens wasn't introduced until almost 1950. Or, as Dr. Robert Kinast puts it, "We think of contact lenses as ...

For centuries, cameras and telescopes have relied on curved glass or plastic lenses to bend light and bring images into focus ...