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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]
Esophoria is an eye condition involving inward deviation of the eye, usually due to extra-ocular muscle imbalance. It is a type of heterophoria. Cause. Causes include: Refractive errors; Divergence insufficiency; Convergence excess; this can be due to nerve, muscle, congenital or mechanical anomalies.
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 ...
Strabismus. 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]
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 music video for LMFAO 's song " Party Rock Anthem " stood as the most-liked video on YouTube in 2012, with 1.56 million likes, until the video for Psy 's " Gangnam Style " surpassed it in September that year with more than 1.57 million likes. Following this accomplishment, "Gangnam Style" entered the Guinness World Records book as the most ...
Beat Street is the sixth studio album by Canadian rock band Prism, released in July 1983 by Capitol Records, two years after Prism's successful studio album, Small Change (1981). It was the last of two Prism studio albums featuring lead vocalist Henry Small, who had replaced Ron Tabak after his forced departure in 1981.
YouTube Music is a music streaming service developed by the American video platform YouTube, a subsidiary of Google. The service is designed with a user interface that allows users to explore songs and music videos on YouTube based on genres, playlists, and recommendations. In April 2023, the service expanded its offerings to include support ...
Screenshot from the "Show Me How to Live" music video. " Show Me How to Live " is a song by the American rock supergroup Audioslave. It was released in June 2003 as the third single from their first album, Audioslave, released in 2003. It peaked at number 67 on the Billboard Hot 100 singles chart, number 2 on the Mainstream Rock Tracks and ...
AllMusic. [1] All the Best from Prism is the first compilation album by Canadian rock band Prism, released in December 1980. The album features the band's greatest hits as well as a new song, "Cover Girl", which failed to chart in both Canada and the U.S. In 1981, All the Best from Prism was certified platinum in Canada (in excess of 100,000 ...