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The 'cadet (Spanish pronunciation:) is a supernatural spirit that appears as a dog-shaped creature with blue eyes when it is calm and red eyes when it is attacking. It roams around isolated roads at night, [1] according to Central American folklore of indigenous origin.
A Trijicon 3.5x35 ACOG prism sight with a Trijicon RMR reflex sight mounted on the top.. A prism sight or prismatic sight, sometimes also called prism scope or prismatic scope, is a type of telescopic sight which uses a reflective prism for its image-erecting system, instead of the series of relay lenses found in traditional telescopic sights.
An ideal trial frame have minimum 3 cells, one each for holding spherical lens, cylindrical lens and other tools like occluder or pinhole. [4] Angle for axis of astigmatism is marked on outermost visible cell There are knobes to adjust pupillary distance, side angle, height and cylindrical lens axis. [5]
Cyclotropia is a form of strabismus in which, compared to the correct positioning of the eyes, there is a torsion of one eye (or both) about the eye's visual axis. . Consequently, the visual fields of the two eyes appear tilted relative t
Leader Dogs for the Blind is a guide dog training organization located in Rochester Hills, Michigan.It was founded in 1939 by Lions Club members Charles Nutting, Don Schuur and S.A. Dodge, [1] as the second guide dog organization founded in the United States and has paired over 14,500 dogs with the visually impaired worldwide, making it one of the largest organizations of its kind.
[[File:Siberian Husky pho.jpg|thumb|alt=A white dog in a harness playfully nuzzles a young boy |A [[Siberian Husky]] used as a pack animal]] File:Siberian Husky pho.jpg The file (image) name must be exact (including capitalization, punctuation and spacing) and must include .jpg, .png or other extension. (Image: and File: work the same.) If ...
As the eye shifts its gaze from looking through the optical center of the corrective lens, the lens-induced astigmatism value increases. In a spherical lens, especially one with a strong correction whose base curve is not in the best spherical form, such increases can significantly impact the clarity of vision in the periphery.
Visual perception is the ability to interpret the surrounding environment through photopic vision (daytime vision), color vision, scotopic vision (night vision), and mesopic vision (twilight vision), using light in the visible spectrum reflected by objects in the environment.