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2. Eyeglass prescription - Wikipedia

   en.wikipedia.org/wiki/Eyeglass_prescription

   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.

3. 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 ...

4. United States dollar - Wikipedia

   en.wikipedia.org/wiki/United_States_dollar

   Denominations; Superunit 10: Eagle 100: Union (Proposed, never issued): Subunit 1 ⁄ 10 Dime 1 ⁄ 100 Cent 1 ⁄ 1000 Mill: Symbol Cent Mill Banknotes Freq. used: $1, $5, $10, $20, $50, $100

5. Born This Way (album) - Wikipedia

   en.wikipedia.org/wiki/Born_This_Way_(album)

   For other albums with the same name, see Born This Way (disambiguation) § Music. Born This Way Standard edition cover Studio album by Lady Gaga Released May 23, 2011 (2011-05-23) Recorded 2010–2011 Studio Abbey Road (London) Germano (New York City) Studio at the Palms (Las Vegas) Gang (Paris) The Mix Room (Burbank) Studios 301 (Sydney) Setai (Miami Beach) Sing Sing (Melbourne) Paradise ...

6. Dioptre - Wikipedia

   en.wikipedia.org/wiki/Dioptre

   This is the same as saying that −1 dioptre lenses are prescribed for reading. In humans, the total optical power of the relaxed eye is approximately 60 dioptres. [ 6 ] [ 7 ] The cornea accounts for approximately two-thirds of this refractive power (about 40 dioptres) and the crystalline lens contributes the remaining one-third (about 20 ...

7. Contact lens - Wikipedia

   en.wikipedia.org/wiki/Contact_lens

   Artist's impression of Leonardo's method for neutralizing the refractive power of the cornea. Leonardo da Vinci is frequently credited with introducing the idea of contact lenses in his 1508 Codex of the eye, Manual D, [9] wherein he described a method of directly altering corneal power by either submerging the head in a bowl of water or wearing a water-filled glass hemisphere over the eye.