The best contact lenses fit well, are breathable and offer all-day comfort. We tested versions and consulted with an ...

With increasing demands of patients concerning refractive outcome after cataract surgery, toric IOLs that correct corneal astigmatism have been introduced more widely to cataract surgery.

Vision correction has come a long way, with various options available to help individuals achieve clearer eyesight. Among these options, custom lens replacement has gained popularity as an effective ...

Skip to trip to the doctor's office and get contact lenses delivered straight to your door with the best places to buy contacts online. Nasha is a Managing Editor for CNET, overseeing our sleep ...

Left and right Diagram showing how left circularly polarized (LCP) light is converted by the bifocal lens into separated beams of LCP light and right circularly polarized (RCP) light. (Courtesy: Fan ...

“I expect that having a lens ... with multifocal IOLs. Additional Precautions for Toric IOLs: The enVista Envy Toric IOL has not been evaluated in a clinical study. In general, astigmatism ...

Astigmatism – you’ve probably heard of it, you might even have it, but what actually is it? Let’s find out. You might’ve guessed already from the title (or hearing the term bandied about ...

Our lens reviews offer detailed information on sharpness, distortion, bokeh, and all the other important factors that go into making a lens great. Our reviews give you all the information you need ...

In the same way photographers have multiple lenses for their cameras, each with a specific use, astronomers also have multiple eyepieces for their telescopes. Eyepieces can offer different focal ...

We also have several guides on camera accessories that you might need to complete your kit, including the best zoom lenses, best lenses for astrophotography and best tripods. Here are our top ...

The focus is on quality and video. Three of the four RF lenses presented belong to Canon's so-called hybrid L models. These are lenses that have been optimized to not only deliver high quality for ...