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Yoked prism can move the image away from primary gaze without the need for a constant head tilt or turn. Prism correction is measured in prism dioptres. A prescription that specifies prism correction will also specify the "base". The base is the thickest part of the lens and is opposite from the apex.
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 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.
The Air National Guard intelligence unit involved in the massive classified documents leak by an airman last year has been recertified and will return to its mission on Saturday after months of ...
The classification would require doctors to have a specific license to prescribe the drugs, which would be stored in certain facilities that in some cases could end up being located far from rural ...
After two days of deliberations, 12 New Yorkers found Donald Trump guilty of all charges in his hush-money case. It is a history-making verdict following a history-making trial. Trump is now the ...
Conjugate eye movement refers to motor coordination of the eyes that allows for bilateral fixation on a single object. A conjugate eye movement is a movement of both eyes in the same direction to maintain binocular gaze (also referred to as “yoked” eye movement).
Trump was convicted on 34 counts of falsifying business records, a class E felony that is punishable by a fine, probation or up to four years in prison. During the trial, Judge Juan Merchan ...
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Eyeglass prescription. 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. If an eye examination indicates that corrective lenses are appropriate, the ...