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1. EYE - National Vision Holdings, Inc.

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   14.61-0.71 (-4.63%)

   at Wed, Jun 5, 2024, 4:00PM EDT - U.S. markets open in 4 hours 54 minutes

   Nasdaq Real Time Price

   • Ask Price 14.63
   • Bid Price 14.58
   • P/E N/A
   • 52 Wk. High 27.02

   • 52 Wk. Low 13.71
   • Mkt. Cap 1.15B

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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. 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]

5. List of instruments used in ophthalmology - Wikipedia

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

   Prisms: to measure the degree of squints; in other instruments; refractive correction; etc. Placido's disc: to assess the condition of the corneal surface Retinoscope: objective determination of refractive error and for looking inside the eye Loupe: used to search for magnified examination of the anterior segment of the eye (uniocular or binocular)

6. Prism (optics) - Wikipedia

   en.wikipedia.org/wiki/Prism_(optics)

   Prism spectacles with a single prism perform a relative displacement of the two eyes, thereby correcting eso-, exo, hyper- or hypotropia. In contrast, spectacles with prisms of equal power for both eyes, called yoked prisms (also: conjugate prisms, ambient lenses or performance glasses) shift the visual field of both eyes to the same extent.

7. Maddox rod - Wikipedia

   en.wikipedia.org/wiki/Maddox_rod

   Dissociation of the deviation is brought about by presenting a red line image to one eye and a white light to the other, while prisms are used to superimpose these and effectively measure the angle of deviation (horizontal and vertical).

8. Ophthalmic trial frame - Wikipedia

   en.wikipedia.org/wiki/Ophthalmic_trial_frame

   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 accessories in subjective refraction (finding the correct spectacle power) and retinoscopy.