Examlex
What is an institutional review board?
Accommodation
The process by which the eye's lens changes shape to focus near or far objects on the retina or the adaptation of the mind to new information.
Refraction
The bending of light as it passes from one medium to another, which changes its speed and direction.
Constriction
The act or process of making something narrower, tighter, or more enclosed.
Dilation
The process of expanding or widening in size; in physiology, it often refers to the widening of blood vessels or pupils in response to specific stimuli.
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