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Convergence insufficiency. Convergence Insufficiency. Other names. Convergence disorder. Specialty. Ophthalmology, optometry. Convergence insufficiency is a sensory and neuromuscular anomaly of the binocular vision system, characterized by a reduced ability of the eyes to turn towards each other, or sustain convergence .
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]
59,000. Searchable database of over 1.2 million historical musical sources, with a focus on the period between 1600 and 1850. When available, links are included to digitized items in the holding institution's repository. RISM, Bavarian State Library, Berlin State Library.
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 ...
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 .
Vocals, piano, percussion. Years active. 1984–present. Labels. CanZion Group LP. Website. marcoswitt .net. Jonathan Mark Witt Holder better known as a Marcos Witt is an American Christian music singer and pastor. Witt is considered one of the most influential and famous Spanish speaking figures of Christian music.
August 11, 2024 at 1:48 PM. Gisela Schober—Getty Images. Economist Nouriel Roubini has been such a doomsayer for so long that he's earned the moniker "Dr. Doom," but he sounded ...