enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Adjustable-focus eyeglasses - Wikipedia

   en.wikipedia.org/wiki/Adjustable-focus_eyeglasses

   Adjustable focus eyeglasses are eyeglasses with an adjustable focal length. They compensate for refractive errors (such as presbyopia ) by providing variable focusing, allowing users to adjust them for desired distance or prescription, or both.

3. Color blind glasses - Wikipedia

   en.wikipedia.org/wiki/Color_blind_glasses

   Glasses with a notch filter (e.g. EnChroma glasses) filter a narrow band of light around 590 nm that excites both the L- and M-cones (yellow-green wavelengths). [12] They are often combined with an additional stopband in the short wavelength (blue) region to minimize the tint on the lenses and approximate a neutral-density filter. They improve ...

4. GlassesUSA - Wikipedia

   en.wikipedia.org/wiki/GlassesUSA

   It was founded in 2009 by Daniel Rothman, Eldad Rothman and Roy Yamner. Daniel Rothman is the current CEO of the company. [4] The company primarily focuses on North America, but also accepts orders from 92 countries. [5]

5. Why can’t you look at the eclipse? Here’s how to DIY safe ...

   www.aol.com/eclipse-glasses-home-yes-where...

   If glasses are not your thing, you can also look at the eclipse using a telescope, camera lens, or binoculars, but they must have the proper filter over the top to avoid causing any eye damage.

6. Glasses are 50% off at GlassesUSA during Black Friday: Frames ...

   www.aol.com/lifestyle/glasses-usa-black-friday...

   Get a new pair of glasses as low as $26 at GlassesUSA during Black Friday week. Shop high-end brands like Ray-Ban or more affordable brands—they're all on sale. Glasses are 50% off at GlassesUSA ...

7. Astigmatism (optical systems) - Wikipedia

   en.wikipedia.org/wiki/Astigmatism_(optical_systems)

   Astigmatism causes difficulties in seeing fine detail. Astigmatism can be often corrected by glasses with a lens that has different radii of curvature in different planes (a cylindrical lens), contact lenses, or refractive surgery. [5] Astigmatism is quite common. Studies have shown that about one in three people suffers from it.