What Happens When the MCR Instruction Is True

question 11

Essay

What happens when the MCR instruction is true?

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Definitions:

Pupil

The adjustable opening in the center of the eye through which light enters, its size regulated by the iris.

Sclera

The tough, white outer layer (coat) of the eyeball that, along with the cornea, helps to maintain the shape and protect the interior of the eye.

Fovea

is the central area of the retina, where visual acuity is highest.

Rods

Photoreceptor cells in the retina of the eye that are responsible for vision at low light levels, distinguishing them from cones which are responsible for color vision and function well in bright light.