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  2. Prism correction - Wikipedia

    en.wikipedia.org/wiki/Prism_correction

    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]

  3. Maddox rod - Wikipedia

    en.wikipedia.org/wiki/Maddox_rod

    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 ...

  4. Canadian Real Estate Association - Wikipedia

    en.wikipedia.org/wiki/Canadian_Real_Estate...

    Website. www .crea .ca. The Canadian Real Estate Association ( CREA; French: L'Association Canadienne de l'Immeuble, ACI) is a trade association that represents real estate brokers, agents, and salespeople in Canada. [2] CREA's membership includes over 130,000 individuals, working through 90 real estate boards and associations across Canada. [2]

  5. Nicol prism - Wikipedia

    en.wikipedia.org/wiki/Nicol_prism

    A Nicol prism is a type of polarizer. It is an optical device made from calcite crystal used to convert ordinary light into plane polarized light . It is made in such a way that it eliminates one of the rays by total internal reflection , i.e. the ordinary ray is eliminated and only the extraordinary ray is transmitted through the prism .

  6. Strabismus - Wikipedia

    en.wikipedia.org/wiki/Strabismus

    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]

  7. Prism adaptation - Wikipedia

    en.wikipedia.org/wiki/Prism_Adaptation

    Prism adaptation. Prism adaptation is a sensory-motor adaptation that occurs after the visual field has been artificially shifted laterally or vertically. It was first introduced by Hermann von Helmholtz in late 19th-century Germany as supportive evidence for his perceptual learning theory (Helmholtz, 1909/1962). [1]

  8. Canadian property bubble - Wikipedia

    en.wikipedia.org/wiki/Canadian_property_bubble

    Canada is a nation heavily dependent on the real estate industry which accounted for roughly 14% of its GDP in 2020 and over 20% in 2023. There is a high risk that if sentiments begin to change and investors feel the market is about to take a turn for the worse, there will be a mass of people selling their properties, causing prices to drop and ...

  9. Schmidt–Pechan prism - Wikipedia

    en.wikipedia.org/wiki/Schmidt–Pechan_prism

    Schmidt–Pechan prism. A Schmidt–Pechan prism, side view (top) and 3D-view (bottom). A Schmidt–Pechan prism is a type of optical prism used to rotate an image by 180°. These prisms are commonly used in binoculars as an image erecting system. The Schmidt–Pechan prism makes use of a roof prism section (from the German: "Dachkante", lit ...

  10. Strata title - Wikipedia

    en.wikipedia.org/wiki/Strata_title

    t. e. Strata title is a form of ownership and housing tenure devised for multi-level apartment blocks and horizontal subdivisions with shared areas. The word "strata" refers to apartments being on different levels. Strata title was first introduced in 1961 in the state of New South Wales, Australia, to better cope with the legal ownership of ...

  11. Diplopia - Wikipedia

    en.wikipedia.org/wiki/Diplopia

    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.