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2. 10 Great Sites to Buy Cheap Eyeglasses Online - AOL

   www.aol.com/10-great-sites-buy-cheap-140036394.html

   Warby usually takes five to 10 business days to ship your order, with home try-ons arriving in about five days. 2. Zenni Optical. Probably one of the cheapest online eyewear stores out there ...

3. Fresnel lens - Wikipedia

   en.wikipedia.org/wiki/Fresnel_lens

   A first-order lens has a focal length of 920 mm (36 + 1 ⁄ 4 in) and stands about 2.59 m (8 ft 6 in) high, and 1.8 m (6 ft) wide. The smallest (sixth) order has a focal length of 150 mm (6 in) and a height of 433 mm (17 + 1 ⁄ 16 in). The largest Fresnel lenses are called hyperradiant (or hyper-radial).

4. Glasses - Wikipedia

   en.wikipedia.org/wiki/Glasses

   Glasses. Glasses, also known as eyeglasses and spectacles, are vision eyewear with clear or tinted lenses mounted in a frame that holds them in front of a person's eyes, typically utilizing a bridge over the nose and hinged arms, known as temples or temple pieces, that rest over the ears. Glasses are typically used for vision correction, such ...

5. 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 ...

6. Free eye exams, eyeglasses for Mansfield City School students ...

   www.aol.com/news/free-eye-exams-eyeglasses...

   The Ohio Optometric Foundation has provided the iSee or In School Eye Exam program to students for free since 2008. Free eye exams, eyeglasses for Mansfield City School students in need Skip to ...

7. Warby Parker is giving out free solar eclipse glasses. Here's ...

   www.aol.com/warby-parker-giving-free-solar...

   There are two Warby Parker locations in the Indianapolis area. The Fashion Mall at Keystone, Warby Parker, 8702 Keystone Crossing, Space 146C. Open 10 a.m.-7 p.m. Mon-Sat and noon to 6 p.m. Sunday ...