HLTHAGE 1CC3 Lecture Notes - Lecture 4: Vitreous Body, Visual Acuity, Amacrine Cell

• School: McMaster University
• Department: Health, Aging and Society
• Course: HLTHAGE 1CC3
• Professor: Mat Savelli

Document Summary

Amplitude & brightness: variations of amplitude affect perceptions of brightness greater amplitude = brighter. Wavelength & colour: variations of wavelength affect perception of colour small wavelength = high frequency. Large wavelengths = low frequency visible spectrum (360nm (violet) - 750nm (red)) Purity & saturation: refers to richness of colour. variations saturation - bland/pale colour = less pure of purity affect perception os. Cornea > pupil > iris > lens > vitreous humor > retina. Not enough light = dilate. too much light = constrict. Lens: final focusing of light on back of eye. Curvature = upside down processed + reversed. Far object = eyes get narrow (think about squinting when look @ board) Vitreous humor: jelly like substance that makes up the main chamber in the eyeball. Retina: where physical stimulus of light is rst translated into neural impulses made up of 3.