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Ludwig van Beethoven composed the Mass in C major, Op. 86, to a commission from Prince Nikolaus Esterházy II in 1807. The mass, scored for four vocal soloists, choir and orchestra, was premiered that year by the Prince's musical forces in Eisenstadt. Beethoven performed parts of it in his 1808 concert featuring the premieres of four major ...
Amblyopia. Anisometropia is a condition in which a person's eyes have substantially differing refractive power. [1] Generally, a difference in power of one diopter (1D) is the threshold for diagnosis of the condition . [2] [3] Patients may have up to 3D of anisometropia before the condition becomes clinically significant due to headache, eye ...
Major Major Major Major is a fictional character in Joseph Heller 's 1961 novel Catch-22. He was named "Major Major Major" by his father, as a joke – passing up such lesser possibilities as "Drum Major, Minor Major, Sergeant Major, or C Sharp Major". [1] Once he joined the army during World War II, he was quickly promoted to the rank of Major ...
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 ...
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.
If the eye was exotropic, covering the fixating eye will cause an inwards movement; and if esotropic, covering the fixating eye will cause an outwards movement. The alternating cover test, or cross cover test is used to detect total deviation (tropia + phoria).
If the patient saw a red line to the right and white light to the left, they are said to have esotropia or esophoria (uncrossed diplopia) in which base out (BO) prisms of increasing strength are used until the lines are superimposed.
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]
Symphony No. 1 (Beethoven) Ludwig van Beethoven 's Symphony No. 1 in C major, Op. 21, was dedicated to Baron Gottfried van Swieten, an early patron of the composer. The piece was published in 1801 by Hoffmeister & Kühnel of Leipzig. It is not known exactly when Beethoven finished writing this work, but sketches of the finale were found to be ...
The Krönungsmesse ( German for Coronation Mass) (Mass No. 15 in C major, K. 317; sometimes Mass No. 16), composed in 1779, is one of the most popular of Wolfgang Amadeus Mozart 's 17 extant settings of the Ordinary of the Mass. While it is relatively short, Bruce C. Macintyre, writing in the Cambridge Mozart Encyclopedia, classifies it as a ...