A retrospective study of 117 hospitalized patients with hippus noted an increased 30-day mortality when compared to controls and adjusted for other factors. [6]

Abstract Purpose: The purpose of this study was to determine the relative roles of the sympathetic (SNS) and parasympathetic nervous system (PNS) in pupillary hippus.

Hippus frequency remains stable across treatments, averaging 0.62 Hz with no significant differences. The study employed a paired-eye control design with 36 participants to assess …

Pupillary hippus, also known as pupillary athetosis, is spasmodic, rhythmic, but regular dilating and contracting pupillary movements between the sphincter and ...

Jan 1, 2017 · Pupillary hippus can be extinguished by antagonizing the PNS, whereas agonizing the SNS dilates the pupil without affecting hippus. This suggests that hippus originates from …

Hippus is an ophthalmological phenomenon characterized by rhythmic and involuntary movements of the pupil, usually harmless and self-limited. It can occur both in physiological …

Pupillary hippus can be extinguished by antagonizing the PNS, whereas agonizing the SNS dilates the pupil without affecting hippus. This suggests that hippus originates from central …

Jan 13, 2017 · Hippus has been associated with parasympathetic activity (Turnbull et al., 2017) and our finding that high hippus power is associated with a low attentional ERP response and …

Normal rhythmic variation in the size of the pupil when exposed to light is not a relative afferent pupillary defect (the pupil keeps constricting and slightly dilating several times per second …

Hippus, also known as pupillary athetosis, is a condition characterized by rhythmic, involuntary fluctuations in the size of the pupils. These changes occur independently of light exposure or …