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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]
The strength of the prism is increased until the streak of the light passes through the centre of the prism, as the strength of the prism indicates the amount of deviation present. The Maddox rod is a handheld instrument composed of red parallel plano convex cylinder lens , which refracts light rays so that a point source of light is seen as a ...
Fixation disparity. Fixation disparity is a tendency of the eyes to drift in the direction of the heterophoria. While the heterophoria refers to a fusion-free vergence state, the fixation disparity refers to a small misalignment of the visual axes when both eyes are open in an observer with normal fusion and binocular vision. [1]
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 ...
For example non-free use rationales, see Wikipedia:Use rationale examples. This tag should only be used for video game covers. Either of the following may be helpful for stating the rationale: Template:Game rationale or Template:Non-free use rationale video game cover. Additionally, please specify at least one platform in the first parameter ...
This template is to help users write non-free use rationales for video game box or cover art as required by WP:NFC and WP:NFURG. Include this in the image file, once for each time you insert images of video game cover art into an article. Please use copyrighted content responsibly and in accordance with Wikipedia policy.
A cover test or cover-uncover test is an objective determination of the presence and amount of ocular deviation. It is typically performed by orthoptists, ophthalmologists and optometrists during eye examinations . The two primary types of cover tests are: the alternating cover test. the unilateral cover test (or the cover-uncover test).
Alec Baldwin's defense attorneys argued Monday that damage done during FBI testing to a revolver that killed a cinematographer on the set of the Western “Rust” has stripped them of the ability ...