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1. EYE - National Vision Holdings, Inc.

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   15.32-0.15 (-0.97%)

   at Tue, Jun 4, 2024, 4:00PM EDT - U.S. markets open in 4 hours 1 minute

   Nasdaq Real Time Price

   • Ask Price 15.33
   • Bid Price 15.27
   • P/E N/A
   • 52 Wk. High 27.02

   • 52 Wk. Low 13.71
   • Mkt. Cap 1.2B

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   • •Price in USD

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3. Prism correction - Wikipedia

   en.wikipedia.org/wiki/Prism_correction

   Eye care professionals use prism correction as a component of some eyeglass prescriptions. A lens which includes some amount of prism correction will displace the viewed image horizontally, vertically, or a combination of both directions. The most common application for this is the treatment of strabismus.

4. Corrective lens - Wikipedia

   en.wikipedia.org/wiki/Corrective_lens

   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. Glasses or "spectacles" are worn on the face a short distance in front of the eye.

5. List of instruments used in ophthalmology - Wikipedia

   en.wikipedia.org/wiki/List_of_instruments_used...

   Spectacles (glasses) to correct refractive errors of the eye; not invasive. Contact lenses. to correct refractive errors of the eye; a little invasive. Phoropter. used in refraction testing. Tonometers. used to determine the intraoccular pressure (IOP) - useful in glaucoma; video link for various types of tonometers.

6. Eyeglass prescription - Wikipedia

   en.wikipedia.org/wiki/Eyeglass_prescription

   Prism and Base Prism refers to a displacement of the image through the lens, often used to treat strabismus and other binocular vision disorders. The prism value is measured in prism diopters , and Base refers to the direction of displacement.

7. 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. It is used by ophthalmologists and orthoptists in order to measure the vertical and horizontal deviation and includes both manifest and latent components. [1]

8. Aberrations of the eye - Wikipedia

   en.wikipedia.org/wiki/Aberrations_of_the_eye

   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 to measure and correct ocular astigmatism.