Astigmatism (uh-STIG-muh-tiz-um) is a type of refractive error where one or more of the eye’s surfaces are not smooth and/or round. It is broadly classified into two types: regular and irregular.

The design of the Ray-Ban Meta glasses may prove to be the “killer feature” that elevates them above the competition. With glasses, looks are important—you’re wearing them on your face, after all—and ...

Display glasses are often misleadingly marketed as "AR glasses." In this article, we clarify what the technology can really do and where its limits lie.

Google is set to launch its new lineup of devices sometime this summer. Here's everything you can expect from the Made by ...

This feature helps you make sense of what you're seeing in real time. It also allows you to speak your question aloud while ...

Recording artist Lachi, who is legally blind, used Ray-Ban Meta AI glasses to help her navigate during a cross-country trip.

It’s easy to scoff at AI and ask, “Who is actually asking for this?” You might also think that smart glasses “aren’t worth it ...

I've compiled the latest rumors and leaks about the next generation of Meta smart glasses. There's a lot here, including potential features, release timelines, Hypernova with HUD display, Orion AR ...

These macro lenses offer outstanding clarity for exploring the tiny world — whether you're photographing butterflies or dewdrops.

Each year, more than 30 million people globally receive surgery to correct cataracts. As many people age, the crystalline ...

Sigma reveals the thinking behind the world's first large format T1.3 cinema primes, and why the company’s fresh rebrand is more than just cosmetic ...

AI is all the rage these days, and it seems like every company with a big enough war chest is pouring their spare change into ...