Eyeglass Lenses

Do you need computer glasses? Learn how glasses for computer use increase visual comfort when using your digital devices.

Guide to eyeglass frames, lenses, lens materials, and coatings, with expert advice on how to buy eyeglasses and sunglasses.

Learn how to read and understand the letters, numbers and symbols on your eyeglasses prescription.

Progressive lenses are a common solution for correcting presbyopia. Explore the types, benefits and uses of these advanced optical lenses.

Polycarbonate and Trivex lenses are lightweight and have similar properties. Find out which is best for you.

Dr. Gary Heiting reveals how aspheric eyeglass lenses give eyewear a slimmer, more attractive profile and provide better vision than conventional eyeglasses.

Has your lens prescription expired? Do you want to know when it expires? Find out why there's an expiration date on your glasses (or contact lens) prescription.

Learn what you need to know about bifocals and trifocals, including occupational multifocal lenses for work and play, plus optional lens coatings.

Trivex lenses are lightweight, durable, and a great choice for rimless frames, children's eyewear and anyone who wants safe, comfortable glasses.

Learn how refraction works, or how the eye sees. Plus, discover symptoms, detection and treatment of common refractive errors.

How fast can photochromic lenses change to sunglasses? Learn how long it takes for photochromic glasses to transition under sunlight, and after going back indoors.

Do you know if photochromic lenses block UV rays? All About Vision reveals the benefits of photochromic lenses or transition lenses to protect against UV light.

Want to learn about photochromic lenses? All About Vision explores photochromic lenses, how they work, how to test them and how to find the right ones for you.

How do photochromic glasses make good computer glasses? All About Vision explores how photochromic lenses may be good computer glasses and when to buy them.

Find out how to use the numbers and letters in your prescription to determine how bad your eye prescription is.

What is crazing of your eyeglass lenses? Crazing is a web of tiny cracks that can appear on the lenses. What can you do about it? Read on to find out.

Gaming glasses claim to reduce eye strain and improve reaction times — but do they work? Learn how gamer glasses work for some and how they affect your vision.

Pinhole glasses, known as stenopeic glasses, are plastic with hundreds of pinhole-sized holes. They help improve refractive errors by shielding indirect rays of light.

Replacing the lenses in your glasses can be a good way to improve your vision with your current frames — but there are risks. Here's what you need to know.

Wondering when photochromic lenses were first developed? All About Vision explores the history of photochromic lenses and the difference from transition lenses.

Not sure which eyeglass lenses are right for your prescription? Learn about lens materials, coatings and prescription types and how they can work for you.

Choose lenses that will adapt to your lifestyle, day or night.

Learn how anti-reflective, scratch-resistant, anti-fog and UV lens coatings improve vision and increase the durability of your glasses.

Discover why some eyeglass lenses need anti-reflective coating more than others. But, everyone will look and see better with AR coating.

Glasses with photochromic lenses are great for cyclists as they prevent the need to pack an extra pair of sunglasses. They allow you to see clearly and shield your eyes from insects, dust, debris and harmful UV rays that could otherwise impair your vision.

Mighty Sight glasses magnify objects and come equipped with LED lights. Designed to slip easily over any eyewear, they’re a convenient vision-enhancement accessory.

Crizal Prevencia is a lens treatment that filters harmful blue-violet light while allowing beneficial blue-turquoise light through.

Optifog eyeglass lenses have special anti-fog molecules that you can activate using a special cloth.