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Ophthalmology. In ophthalmology, horror fusionis is a condition in which the eyes have an unsteady deviation, with the extraocular muscles performing spasm-like movements that continuously shift the eyes away from the position in which they would be directed to the same point in space, giving rise to diplopia. Even when the double vision images ...
Specialty. Neurology, ophthalmology. Diplopia is the simultaneous perception of two images of a single object that may be displaced horizontally or vertically in relation to each other. [1] Also called double vision, it is a loss of visual focus under regular conditions, and is often voluntary.
The Prentice position is an orientation of a prism, used in optics, optometry and ophthalmology. In this position, named after the optician Charles F. Prentice, the prism is oriented such that light enters it at an angle of 90° to the first surface, so that the beam does not refract at that surface. All the deviation caused by the prism takes ...
Esotropia is a form of strabismus in which one or both eyes turn inward. The condition can be constantly present, or occur intermittently, and can give the affected individual a "cross-eyed" appearance. [1] It is the opposite of exotropia and usually involves more severe axis deviation than esophoria. Esotropia is sometimes erroneously called ...
Incomitant strabismus cannot be fully corrected by prism glasses, because the eyes would require different degrees of prismatic correction dependent on the direction of the gaze. Incomitant strabismus of the eso- or exo-type are classified as "alphabet patterns": they are denoted as A- or V- or more rarely λ -, Y- or X-pattern depending on the ...
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 ...
Language Family Branch First-language (L1) speakers Second-language (L2) speakers Total speakers (L1+L2) English (excl. creole languages) Indo-European: Germanic: 380 million 1.077 billion: 1.456 billion Mandarin Chinese (incl. Standard Chinese, but excl. other varieties) Sino-Tibetan: Sinitic: 939 million 199 million: 1.138 billion Hindi (excl ...
Prism dioptres. Prism correction is commonly specified in prism dioptres, a unit of angular measurement that is loosely related to the dioptre. Prism dioptres are represented by the Greek symbol delta (Δ) in superscript. A prism of power 1 Δ would produce 1 unit of displacement for an object held 100 units from the prism. [2]
List of Amazon India originals. Beginning in 2013, Amazon started distributing original content (series, films, etc.) through its Prime Video service, some of which are developed by in-house Amazon Studios. This article gives a list of Amazon's originals for India .
Translated Bhupen Hazarika's original Assamese folk-songs into Hindi, and gave a commentary. 1999: Marasim: Lyrics Music album with Jagjit Singh: 2000: Sunset Point: Lyrics Music album with Vishal Bhardwaj, Bhupinder and K. S. Chithra: 2001: Visaal: Lyrics Music album with Ghulam Ali: 2002: Udaas Pani: Lyrics Music album with Abhishek Ray ...