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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]
Maddox wing. The Maddox Wing is an instrument utilized by ophthalmologists, orthoptists and optometrists in the measurement of strabismus (misalignment of the eyes; commonly referred to as a squint or lazy eye by the lay person). It is a quantitative and subjective method of measuring the size of a strabismic deviation by dissociation of the ...
Believe is the second studio album by American heavy metal band Disturbed, released on September 17, 2002 via Reprise Records. Produced by the band and Johnny K, it focuses heavily on religious and spiritual themes inspired by recent tragedies. With greater emphases on melodic dynamics, it also demonstrates a broadening in the band's musical ...
Released: July 17, 2007. A Beautiful Lie is the second studio album by American rock band Thirty Seconds to Mars, released on August 30, 2005 through Virgin Records. It was produced by Josh Abraham . A Beautiful Lie differs notably from the band's self-titled debut album, both musically and lyrically. Whereas the eponymous concept album 's ...
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.
Prism is the fourth studio album by American singer Katy Perry. It was released by Capitol Records on October 18, 2013. While the album was initially planned to be "darker" than her previous material, Prism ultimately became a prominently dance-inspired record. Perry worked with several past collaborators, while enlisting new producers and ...
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 ...
Breaking Benjamin performing on February 14, 2015. The American rock band Breaking Benjamin has released six studio albums, two compilation albums, three extended plays, 23 singles and 17 music videos. The group has sold over nineteen million units in the United States alone, [1] with three platinum records, two gold records, three multi ...
No Heavy Petting is the fifth studio album by English rock band UFO, released in 1976. It is the first UFO album to feature a full-time keyboard player as a member of the band, making this their first record as a five-piece band. While keyboardist Danny Peyronel only stayed in the band for this one album, he did co-write several tracks on the ...
Released: August 3, 2011. Screaming Bloody Murder is the fifth studio album by Canadian rock band Sum 41, released on March 29, 2011, after many delays. It is the band's second album produced by frontman Deryck Whibley. It is the band's last album to be released on Island Records before they had fulfilled their contract with the major label in ...