hippus

It is usually normal, however pathological hippus can occur.

At this stage the pupils do not remain completely still, therefore may lead to oscillation, which may intensify and become known as hippus.

Pupillary hippus comes from the Greek hippos meaning horse, perhaps due to the rhythm of the contractions representing a galloping horse.

Pathologic hippus, the phenomena of increased oscillation or their amplitude, is associated with aconite poisoning, altered mental status, trauma, cirrhosis, and renal disease; suggesting a common pathway of frontal lobe dysfunction.

Indeed, he has not yet even been named, although we are quite familiar with his attributes; perhaps when his bones are ultimately found-and they will be-a proper name would be 'paleohippus,' the hippus of the Paleocene epoch.

In order to improve the realism of the resulting simulations, the hippus effect can be approximated by adding small random variations to the environment light (in the range of 0.05 Hz to 0.3 Hz) as proposed by.

Arrian mentions many others by name, but they would seem to have been little more than mountain torrents: the most important of them were Charieis, Chobus or Cobus, Singames, Tarsuras, Hippus, Astelephus, Chrysorrhoas, several of which are also noticed by Ptolemy and Pliny.