CAS BI 325 Chapter Notes - Chapter 9: Pupillary Light Reflex, Vitreous Body, Aqueous Humour
2 Jan 2018
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Document Summary
Electromagnetic energy emitted in form of waves. @ back of eyes is the activity. Ray- describes wave of light in a vacuum traveling in a straight line (study of rays/interactions = optics) Reflection- bouncing of light wave, dependent on angle. Absorption- transfer of light energy to a particle or surface. Surrounds pupil, muscle that varies the size of the pupil. --2 muscles- one for contraction. Macula : middle of the retina; for central vision. Inside eye, behind iris is the zonule fiber ligaments that attach to forming a ring inside the eye. Lies b/w lens and retina keeping the. -light passes into medium that slows its speed, will bend to line perpendicular to the border b/w the media. Diopter be focused 0. 042m behind it--the distance from the cornea to the retina. -near objects light rays aren"t parallel, greater refractive power needed in order to be focused; done by manipulating shape of lens = .
