PSYC 4470 Lecture Notes - Optic Disc, Christoph Scheiner, Radiant Energy
10 Feb 2013
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Document Summary
Light light consists of radiant energy similar to radio waves oscillates as it is transmitted from source. Wavelength distance between adjacent waves of radiant energy; in vision, most clearly associated with perceptual dimension of hue. Wavelegnth for visible light ranges from 380-760 nanometres (380 violet, 760. Entire range of wavelength is called electromagnetic spectrum and part our eyes can detect is visible spectrum. Cornea transparent tissue covering front of eye; admits light. Sclera tough white membrane that is outer layer of eye iris pigmented muscle of eye that controls size of pupil contains two bands of muscle. Brain controls these muscles and regulates size of pupil. Aqueous humour - space behin cornea is filled with (watery fluid) Constantly produced by tissue behin cornea that filters fluid from blood. Nourishes cornea and other portions of eye in place of blood vessels must circulate.
