CMD 377 Lecture Notes - Lecture 15: Calcarine Sulcus, Optic Chiasm, Visual Cortex
5 Apr 2017
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Cmd 377 - lecture 15 - the visual system. Ability of the eye to bend light. When the light passes through one medium of optical density to. Regulates the amount of light entering the eye. Hits retina in the back of the eye. Flattened by the tension of the zonule fibers for far-focusing. During accommodation, anterior part bulges forward for near-focusing. 7-10 layers of neurons and nerve processes. Concerned with peripheral vision and vision under conditions of low illumination. Numerous in the periphery of the eye. Concerned with central discriminative vision and detection of color. Area surrounding the fovea in center of retina. Not the same as the fovea but may be used interchangeably. Light is transmitted into electrical charge in the retina. Official cns space from this point on. Some branch off to synapse in the superior colliculi of the midbrain. Hole in vision created by the optic disk. Where the ganglion cell axons leave the retina.
