Xpanceo wants to turn the sci-fi vision of smart contact lenses into reality. But the road ahead is rocky and skepticism is warranted.

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

Why I'm drawn to pairing vintage Hasselblad, Mamiya, and Pentax 67 lenses with my modern Fujifilm medium format camera ...

Alcon’s Voyager is a fully automated, noncontact treatment approach that delivers 120 laser pulses through the limbus of the ...

Daily use of diversified segmental defocus optimization (DSDO) spectacle lenses delays the onset of myopia among children, ...

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

Cones outnumber rods only in the center of the retina, which is the area of greatest density. It is also the area most heavily used by daytime, direct vision. But rods do fire during the day, ...

From single vision to transition lenses, these online stores can help you upgrade your old frames for less.

The Tecnis Symfony OptiBlue IOL, a violet light-filtering extended depth of focus lens implant, yielded positive vision ...