The student learning about vision should remember which facts related to the eyes? (Select all that apply.)
a. Aqueous humor controls intraocular pressure.
b. Cones work in low light conditions.
c. Glaucoma occurs due to increased pressure in the eye.
d. Muscles of the iris control light entering the eye.
e. Rods work in low light conditions.
ANS: A, C, D, E
The inflow and outflow of aqueous humor controls the intraocular pressure. Glaucoma results when the pressure is chronically high. Muscles of the iris relax and constrict to control the amount of light entering the eye. Rods work in low light conditions. Cones work in bright light conditions.
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