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The prism fusion range ( PFR) or fusional vergence amplitude is a clinical eye test performed by orthoptists, optometrists, and ophthalmologists to assess motor fusion, specifically the extent to which a patient can maintain binocular single vision ( BSV) in the presence of increasing vergence demands. Motor fusion is largely accounted to ...
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]
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]
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June 26, 2024 at 12:39 PM. (Reuters) -Amazon.com Inc hit $2 trillion in market value for the first time on Wednesday, becoming the fifth U.S. company to surpass that level as optimism around ...
Exophoria. Exophoria is a form of heterophoria in which there is a tendency of the eyes to deviate outward. [1] During examination, when the eyes are dissociated, the visual axes will appear to diverge away from one another. [2] The axis deviation in exophoria is usually mild compared with that of exotropia .
Shake Shack's former CEO Randy Garutti and famed restaurateur Danny Meyer discussed the qualities they sought in a successor before appointing ex-Papa John's CEO Rob Lynch.
Smaller numbers of overseas military bases are operated by China, Iran, India, Italy, Japan, Saudi Arabia, Singapore and the United Arab Emirates . The United States is the largest operator of military bases abroad, with 38 "named bases" [note 1] with active duty, national guard, reserve, or civilian personnel as of September 30, 2014.