PSYC 207 Study Guide - Transcortical Sensory Aphasia, Fusiform Gyrus, Optic Chiasm
Document Summary
Lecture 16 ( october 13 2010) anatomy of the visual pathway (brain-based visual disorders) Hole in the eye its called the pupil. Size of the pupil can be control; the iris controls the size of the pupil. When its really bright out the iris makes the pupil smaller. When you wake into the a dark place, iris makes your pupil bigger (let as much light in) Light enters to the pupil and it hits the lens. Retina: layer of cells that pick up light information (has fovea in it) Optic nerve: connections that carry visual information from eyes to the brain. What one eye doesnt see, the other one will see. Optometrist (od): doctor that gives you glasses; check your eyes. Catarcts : people over 85; lens get burry. (cloudy lens) treatment: lens replacement. Glaucoma: check pressures; where there is too much pressure on the eye and it pushes the optic nerve because of this you might be blind.
