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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. Corrective lens - Wikipedia

    en.wikipedia.org/wiki/Corrective_lens

    Corrective lens. A pair of contact lenses, positioned with the concave side facing upward. A corrective lens is a transmissive optical device that is worn on the eye to improve visual perception. The most common use is to treat refractive errors: myopia, hypermetropia, astigmatism, and presbyopia.

  4. 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]

  5. As Seen on TV review: HD Vision sunglasses - AOL

    www.aol.com/2010/07/22/hd-vision-sunglasses-review

    The Product: HD Vision Sunglasses The Price: HD Vision Ultra, online $10 plus $6.99 shipping and handling: $9.99 in some retail stores: HD Vision WrapAround, online $14.99 plus $7.95 shipping and ...

  6. Here are the best 'As Seen on TV' items under $25 at Walmart

    www.aol.com/lifestyle/best-seen-tv-items-under...

    This discreet, travel-sized device makes it easy to remove hair on your brows, upper lip or chin without causing redness or irritation. It comes with a built-in light so you can see what you're ...

  7. The 30 Best Sunglasses Brands to Wear Every Damn Day - AOL

    www.aol.com/30-best-sunglasses-brands-wear...

    It's time to invest in the best sunglasses brands for men. Shop our favorites from Oliver Peoples, Ray-Ban, Persol, and more. The 30 Best Sunglasses Brands to Wear Every Damn Day