The answer is C. Mydriatic eye drops are used for dilation of the pupil. Dilating a patient's pupils is commonly done so that the eye doctor can examine the structures (e.g. crystalline lens, vitreous, optic nerve, and retina)behind the iris better.
Mydriatic eye drops typically have a red cap. Examples of mydriatics are: phenylephrine and tropicaminde.
Mydriatics come in two main varieties: (1) ones that inhibit the pupillary sphincter muscle; and (2) ones that activate the pupillary dilator muscle. Examples of each are:
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