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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 ...
Purpose. whether a person has strabismus. In the fields of optometry and ophthalmology, the Hirschberg test, also Hirschberg corneal reflex test, is a screening test that can be used to assess whether a person has strabismus (ocular misalignment). A photographic version of the Hirschberg is used to quantify strabismus. [1]
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]
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Armageddon is the third studio album by Canadian rock band Prism, released in June 1979 by Capitol Records. It achieved double platinum status in Canada (in excess of 200,000 units sold). [2] Armageddon is notable for several reasons. Bruce Fairbairn received the Canadian music industry 1980 Juno Award for Producer of the Year for the album.
Prism tasks the player with manipulating 3D shapes. Each level of game consists of the player solving puzzles on a geometric shape (that resembles a planet) to reveal the central core which allows the player to advance. The puzzles are solved by tapping, sliding and spinning the symbols on the surfaces of the shape into the correct spots.