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2. Zenni Optical - Wikipedia

   en.wikipedia.org/wiki/Zenni_Optical

   Website. www .zennioptical .com. Zenni Optical (formerly 19dollareyeglasses.com) is an American online retailer of prescription glasses and sunglasses. Founded in 2003 by Tibor Laczay and Julia Zhen, it is based in Novato, California . The company sells more than 2,000 types of prescription glasses and sunglasses but does not sell contact lenses.

3. I tried those Pair Eyewear glasses with the magnetic ... - AOL

   www.aol.com/lifestyle/tried-those-pair-eyewear...

   Pair offers only about 10 frame styles each for men and women, with five available for kids. But you can choose from dozens of top options, everything from solid colors to holiday themes to "sun ...

4. The 1 website that needs to be on your radar if you wear ...

   www.aol.com/lifestyle/1-website-needs-radar-wear...

   The convenience may be tempting, but buying your prescription eyeglasses and/or sunglasses online could save you serious money. One of my favorite places to score stylish, durable, high-quality ...

5. Peli Lens - Wikipedia

   en.wikipedia.org/wiki/Peli_Lens

   Peli Lens. The Peli Lens is a mobility aid for people with homonymous hemianopia. It is also known as “EP” or Expansion Prism concept and was developed by Dr. Eli Peli of Schepens Eye Research Institute in 1999. It expands the visual field by 20 degrees. He tested this concept on several patients in his private practice with great success ...

6. 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. Current bifocals and progressive lenses are static, in that the user has to change their eye position ...

7. Crown glass (optics) - Wikipedia

   en.wikipedia.org/wiki/Crown_glass_(optics)

   Crown glass is a type of optical glass used in lenses and other optical components. It has relatively low refractive index (≈1.52) and low dispersion (with Abbe numbers between 50 and 85). Crown glass is produced from alkali-lime silicates containing approximately 10% potassium oxide and is one of the earliest low dispersion glasses .