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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 ...
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 ...
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]
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]
Miller's Anatomy of the Dog is a veterinary textbook which was first published in 1964. [1] It deals with the structure, organs and tissues of the dog. The fifth edition was published in 2020. Malcolm E. Miller began work on the first edition of the textbook in 1946, having completed a thesis in 1940 entitled "The Dissection and Study of the ...
Ectopia lentis. Ectopia Lentis in Marfan syndrome. Zonular fibers are being seen. Ectopia lentis is a displacement or malposition of the eye 's crystalline lens from its normal location. A partial dislocation of a lens is termed lens subluxation or subluxated lens; a complete dislocation of a lens is termed lens luxation or luxated lens .
Cynophobia. Cynophobia [a] (from the Greek: κύων kýōn "dog" and φόβος phóbos "fear") is the fear of dogs and canines in general. Cynophobia is classified as a specific phobia, under the subtype "animal phobias". [1] According to Timothy O. Rentz of the Laboratory for the Study of Anxiety Disorders at the University of Texas, animal ...
Senate Majority Leader Chuck Schumer (D-N.Y.) is shifting to campaign mode as he’s planning a series of message votes on border security, access to contraception and other hot-button issues. The ...
Bessel's correction. In statistics, Bessel's correction is the use of n − 1 instead of n in the formula for the sample variance and sample standard deviation, [1] where n is the number of observations in a sample. This method corrects the bias in the estimation of the population variance. It also partially corrects the bias in the estimation ...
Decay correction is one way of working out what the radioactivity would have been at the time it was taken, rather than at the time it was tested. For example, the isotope copper-64, commonly used in medical research, has a half-life of 12.7 hours. If you inject a large group of animals at "time zero", but measure the radioactivity in their ...