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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 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 ...
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 .
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 ...
Prism (optics) A familiar dispersive prism. An optical prism is a transparent optical element with flat, polished surfaces that are designed to refract light. At least one surface must be angled — elements with two parallel surfaces are not prisms. The most familiar type of optical prism is the triangular prism, which has a triangular base ...
Toy Story is a 1995 American animated comedy film produced by Pixar Animation Studios for Walt Disney Pictures. The first installment in the franchise of the same name, it was the first entirely computer-animated feature film, as well as the first feature film from Pixar. The film was directed by John Lasseter (in his feature directorial debut ...
List of Tom Hanks performances and credits. Tom Hanks is an American actor and filmmaker who has had an extensive career in film, television and stage. Hanks made his professional acting debut on stage, playing Grumio in a 1977 Great Lakes Theater production of The Taming of the Shrew. [ 1] He made his film debut with a minor role in the 1980 ...
Joint Base San Antonio – located 8 kilometers (5 miles) north of San Antonio, Texas. Joint Base Langley-Eustis – located 12 kilometers (8 miles) east of Newport News, Virginia. Joint Region Marianas – combines Naval Base Guam, Andersen Air Force Base and Marine Corps Base Camp Blaz. Joint Base Myer-Henderson Hall – located 1 kilometer ...