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2. 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.

3. Progressive lens - Wikipedia

   en.wikipedia.org/wiki/Progressive_lens

   Progressive lenses are corrective lenses used in eyeglasses to correct presbyopia and other disorders of accommodation. They are characterised by a gradient of increasing lens power, added to the wearer's correction for the other refractive errors. The gradient starts at the wearer's distance prescription at the top of the lens and reaches a ...

4. iPhone 8 - Wikipedia

   en.wikipedia.org/wiki/IPhone_8

   Contents. iPhone 8. TD-SCDMA 1900 (F), 2000 (A) & CDMA2000 EV-DO Rev. A (800, 1900, 2100 MHz) The iPhone 8 and iPhone 8 Plus are smartphones designed, developed, and marketed by Apple Inc. They are the eleventh generation of the iPhone. The iPhone 8 was released on September 22, 2017, succeeding the iPhone 7 and iPhone 7 Plus respectively.

5. Ophthalmic trial frame - Wikipedia

   en.wikipedia.org/wiki/Ophthalmic_trial_frame

   Ophthalmic trial frame. ophthalmic trial frame is used to hold lenses and other accessories during correction of refractive errors. A trial frame is a tool used by ophthalmic professionals like ophthalmologists and optometrists. It is basically an adjustable spectacle frame with multiple cells, used to hold corrective lenses, and other ...

6. The best lenses for iPhone and Android phones in 2022 ... - AOL

   www.aol.com/news/best-lenses-iphone-android...

   The best lenses for iPhone and Android phones will elevate your photos and vidos giving them a more professional feel The best lenses for iPhone and Android phones in 2022: add-on phone lenses ...

7. 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 as well as 45 types of contact lenses.