In the United States alone, about 45 million people wear contact lenses to correct their vision. While not as popular as traditional glasses, contact lenses have distinct advantages for eye health and ...

A camera lens filter is pretty much what you’d expect: it’s a physical piece of glass that attaches to your camera’s lens, filters the light before it reaches the sensor and, typically, has an effect ...

Bifocal contact lenses allow a person to see clearly both at a distance and up close by correcting near, intermediate, and distance vision. Anyone interested in trying bifocal contact lenses can ...

We may receive a commission on purchases made from links. Whether you're a professional photographer expanding your lens repertoire to accommodate more clients or a serious hobbyist exploring more ...

Forbes contributors publish independent expert analyses and insights. David Hochman covers the worlds of luxury, travel, and entertainment. Zeiss considers more than just your prescription when ...

“In optics, there was a problem,” says Amit Agrawal, a physicist at the National Institute of Standards and Technology in Gaithersburg, Md. If you wanted to focus a single lens to two different points ...