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2. Prism correction - Wikipedia

   en.wikipedia.org/wiki/Prism_correction

   Prism dioptres. Prism correction is commonly specified in prism dioptres, a unit of angular measurement that is loosely related to the dioptre. Prism dioptres are represented by the Greek symbol delta (Δ) in superscript. A prism of power 1 Δ would produce 1 unit of displacement for an object held 100 units from the prism. [2]

3. Prism cover test - Wikipedia

   en.wikipedia.org/wiki/Prism_Cover_Test

   The prism cover test ( PCT) is an objective measurement and the gold standard in measuring strabismus, i.e. ocular misalignment, or a deviation of the eye. [1] It is used by ophthalmologists and orthoptists in order to measure the vertical and horizontal deviation and includes both manifest and latent components. [1]

4. Walmart+ Week is here: How to save big during this member ...

   www.aol.com/lifestyle/walmart-plus-week-2024...

   Typically, Walmart+ members save 10 cents per gallon when stopping at one of the 13,000+ participating gas stops nationwide, including at Exxon, Mobil, Walmart and Murphy stations. But for this ...

5. Walmart's 50+ best deals this week — Vizio, Shark ... - AOL

   www.aol.com/lifestyle/walmart-weekly-deals-1023...

   Get this: A Shark vac reduced by over $100, a highly rated pair of headphones for 80% off, and so much more.

6. Aberrations of the eye - Wikipedia

   en.wikipedia.org/wiki/Aberrations_of_the_eye

   Aberrations of the eye. The eye, like any other optical system, suffers from a number of specific optical aberrations. The optical quality of the eye is limited by optical aberrations, diffraction and scatter. [1] Correction of spherocylindrical refractive errors has been possible for nearly two centuries following Airy's development of methods ...

7. Vitamix recalls almost 570,000 blender parts - AOL

   www.aol.com/vitamix-recalls-almost-570-000...

   The pricey blenders were sold at Costco, Best Buy, Crate & Barrel, Macy’s, Target, Williams Sonoma, Walmart and specialty stores from April 2017 through May 2024. Amazon, Vitamix and QVC also ...

8. 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.

9. Walmart's answer to Amazon Prime Day is coming: Here's when ...

   www.aol.com/lifestyle/walmarts-largest-deals...

   Walmart just announced Walmart Deals, or more casually known as Walmart's anti-Prime Day sale, will kick off on Monday, July 8 at 5pm ET and run through Thursday, July 11 at 11:59pm PT. There will ...