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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 ...
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 ...
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]
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.
Glasses, surgery [3] Frequency. ~2% (children) [3] Strabismus is a vision disorder in which the eyes do not properly align with each other when looking at an object. [2] The eye that is pointed at an object can alternate. [3] The condition may be present occasionally or constantly. [3]
The Spokesmen were an American pop music trio. They scored a hit single in the U.S. in 1965 with the tune "The Dawn of Correction", which was a partially sarcastic counterpoint and answer record to Barry McGuire 's protest song, "Eve of Destruction". The song was written by the group's members, John Medora, David White, and Ray Gilmore, the ...
The Box, originally named the Video Jukebox Network, was an American broadcast, cable and satellite television network that operated from 1985 to 2001. The network focused on music videos, which through a change in format in the early 1990s, were selected by viewer request via telephone; as such, unlike competing networks (such as MTV and VH1), the videos were not broadcast on a set rotation.
Viva ceased broadcasting on all platforms at 6:00am on 31 January 2018, with the final music video shown was Spice Girls' "Viva Forever". A day before, it was removed from Freesat, and the network's website was redirected to the MTV charts webpage. From 1 February, DTT's channel 57 began carrying a part-time placeholder broadcast of 5Spike +1.
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 are made to ...
Church music during the Reformation developed during the Protestant Reformation in two schools of thought, the regulative and normative principles of worship, based on reformers John Calvin and Martin Luther. They derived their concepts in response to the Catholic church music, which they found distracting and too ornate.