Which condition does mydriasis commonly indicate?

Mydriasis, or the dilation of the pupils, commonly indicates an autonomic nervous system reaction. This phenomenon occurs due to activation of the sympathetic nervous system, which can happen in response to various stimuli, including stress, anxiety, or the use of certain medications like sympathomimetics. In these cases, the muscles controlling the pupil's size respond to these stimuli, leading to dilation.

Understanding mydriasis in the context of autonomic reactions helps healthcare providers assess patient responses during examinations or in various medical situations. Although increased intraocular pressure and conditions like retinal detachment can affect the eye, they do not primarily result in mydriasis as a direct manifestation. Pupil fatigue, while a term that might seem plausible, is not a recognized medical condition and does not accurately describe the physiological response observed with mydriasis.