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2. Here's How to Keep Your Glasses From Slipping - AOL

   www.aol.com/lifestyle/heres-keep-glasses...

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3. Spectacles (product) - Wikipedia

   en.wikipedia.org/wiki/Spectacles_(product)

   The Spectacles circular video format. Spectacles glasses capture video in a circular format, as shown in the thumbnail to the right. Snap Inc claims this is to more closely approximate the field of view of the human eye. [dubious – discuss] The glasses are exclusive to Snap Inc's service, Snapchat. They are paired by looking at the user's ...

4. Eyewear - Wikipedia

   en.wikipedia.org/wiki/Eyewear

   Eyewear frames around this time were mainly made of animal bones, horns and fabric; the implementation of wire frames in the 16th century further allowed glasses to be mass-produced. The 16th century also saw the earliest ancestors of pince-nez eyewear, which secured itself to the wearer through "pinching" the nose and later would become ...

5. Eyeglass prescription - Wikipedia

   en.wikipedia.org/wiki/Eyeglass_prescription

   Using a phoropter to determine a prescription for eyeglasses. An eyeglass prescription is an order written by an eyewear prescriber, such as an optometrist, that specifies the value of all parameters the prescriber has deemed necessary to construct and/or dispense corrective lenses appropriate for a patient.

6. Pinhole glasses - Wikipedia

   en.wikipedia.org/wiki/Pinhole_glasses

   Pinhole glasses, also known as stenopeic glasses, are eyeglasses with a series of pinhole-sized perforations filling an opaque sheet of plastic in place of each lens. Similar to the workings of a pinhole camera , each perforation allows only a very narrow beam of light to enter the eye which reduces the size of the circle of confusion on the ...

7. Corrective lens - Wikipedia

   en.wikipedia.org/wiki/Corrective_lens

   In glasses with powers beyond ±4.00D, the vertex distance can affect the effective power of the glasses. [4] A shorter vertex distance can expand the field of view, but if the vertex distance is too small, the eyelashes will come into contact with the back of the lens, smudging the lens and causing annoyance for the wearer.

8. It’s time for fantasy football managers to take their game to ...

   www.aol.com/sports/time-fantasy-football...

   All you have to do is link your YouTube TV account with your NFL Fantasy or Yahoo Fantasy account, and follow along with your weekly matchup live as you watch the games!

9. Prism correction - Wikipedia

   en.wikipedia.org/wiki/Prism_correction

   Yoked prism can move the image away from primary gaze without the need for a constant head tilt or turn. [1] Prism correction is measured in prism dioptres. A prescription that specifies prism correction will also specify the "base". The base is the thickest part of the lens and is opposite from the apex.