Chapter 12 Neuro: Vision System

Complete the following statement using the appropriate technical term: An irregular curvature of the lens and/or of the cornea causes _______ in which vertical and horizontal rays focus on different retinal points.

• astigmatism
• binocular vision

Complete the following statement using the appropriate technical term: In _______ vision, the visual field area is simultaneously processed in both eyes.

• binocular
• Astigmatism

Complete the following statement using the appropriate technical term: The retinal point at which light rays converge for focusing is called the _______. The _______ is the distance between the lens and this retinal focal point.

Complete the following statement using the appropriate technical term: The parasympathetically mediated response that the lens undergoes to keep a near object in focus is the _______.

Complete the following statement using the appropriate technical term: The _______ is the area through which the optic nerve (CN II) exists and arteries enter the eyeball; with no presence of photoreceptors at this point.

• optic disk
• optic vbs

Complete the following statement using the appropriate technical term: Change in the diameter of the pupils in response to a projected light is called the _______ reflex, which is mediated by the visceral fibers of the _______ nerve (CN III).

• light; oculomotor

• dark; oculomotor

Tags

NGSS.HS-LS1-3

What type of visual deficit results after a lesion affecting the Meyer loop?

What visual deficit results from a lesion in the dorsal/superior geniculocalcarine fibers?

List the light conditions in which rods and cones are, respectively, operational:

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-_____________ is the entire external area that is perceived in one eye.

• Visual field

• Global field