The autonomic nervous system (ANS) plays a critical role in regulating involuntary physiological
processes, including heart rate, blood pressure, digestion, and respiratory rate. It is divided into
two main branches: the sympathetic nervous system (SNS) and the parasympathetic nervous
system (PNS). Both of these branches work together to maintain homeostasis in the body,
responding to internal and external stimuli to regulate bodily functions.
When it comes to the eye, the ANS is essential in controlling various ocular functions, including
pupil size, tear production, and blood flow. Understanding the connection between autonomics
and the eye is crucial for professionals in fields like neuro-optometry, as these systems influence
eye health and visual function.
