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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 to each other. The corresponding latent condition – a condition in which torsion occurs only in the absence ...
Lamps as seen through a prism. In optics, a dispersive prism is an optical prism that is used to disperse light, that is, to separate light into its spectral components (the colors of the rainbow ). Different wavelengths (colors) of light will be deflected by the prism at different angles. [1] This is a result of the prism material's index of ...
ophthalmic trial frame is used to hold lenses and other accessories during correction of refractive errors. Test of. Visual acuity. A trial frame is a tool used by ophthalmic professionals like ophthalmologists and optometrists. It is basically an adjustable spectacle frame with multiple cells, used to hold corrective lenses, and other ...
The Nikon F2 is an all-metal, mechanically-controlled (springs, gears, levers), manual focus SLR with manual exposure control. The camera itself needed no batteries, though the prism light meter did (and the motor drive if added). The F2 replaced the Nikon F, adding many new features (a faster 1/2000-second maximum shutter speed, a swing open ...
Dioptric correction [1] is the expression for the adjustment of the optical instrument to the varying visual acuity of a person's eyes. It is the adjustment of one lens to provide compatible focus when the viewer's eyes have differing visual capabilities. One result is less strain on the eyes that allow for optimal viewing and depth and ...
Depp began his career as a musician performing in several amateur rock bands before transitioning into film. He made his feature film debut in the horror film A Nightmare on Elm Street (1984) and appeared in Platoon (1986), before rising to prominence as a teen idol on the television series 21 Jump Street (1987–1990).
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