Pupil Perimetry Demonstrates Hemifield Pupillary Hypokinesia in a Patient With a Pretectal Lesion Causing a Relative Afferent Pupil Defect but No Visual Field Loss

Abstract

Our experiment suggests that the brachium is indeed a continuation of the afferent pupillary fibers traveling in the optic tract.

Rapid diagnosis of retina and optic nerve abnormalities in canine patients with and without cataracts using chromatic pupil light reflex testing

“…However, we cannot exclude the possibility that focal chorioretinitis, which we have observed in the majority of our optic neuritis patients, resulted in the primary rod damage and impairment of retinal electrical activity and night vision. Many optic neuritis patients may have inflammatory brain component affecting predominantly the white matter, so it is possible that observed lack of the PLR and dazzle reflex may be a result of the damage to subcortical mid‐brain centers and/or their efferent radiations, which could potentially contribute to the absence of these reflex responses 36–39 …”

Swinging-Flashlight-Test – Schritt für Schritt

“…Läsionen des Tractus opticus oder der pupillomotorischen Afferenzen im Mesencephalon führen wenn, dann in aller Regel zu einem kontralateralen RAPD. Entgegen des als klassisch postulierten Verlaufs der pupillomotorischen Afferenzen mit Abzweigung vor dem Corpus geniculatum laterale konnte auch bei retrogenikulären Läsionen ein kontralateraler RAPD beobachtet werden [5,6]. Die zugrunde liegenden anatomischen Verhältnisse konnten noch nicht abschließend geklärt werden.…”

Educating the blind brain: a panorama of neural bases of vision and of training programs in organic neurovisual deficits

“…To end, other neurovisual systems can also be impaired, resulting in specific impairment of the functions related to the retino-collicular (Gaymard et al, 2003 ), retino-pretectal (Papageorgiou et al, 2009 ), retino-hypothalamic (Fraser et al, 2012 ) visual pathways, as well as to AOS (Brodsky, 2012 ). However these studies are scarce given the low frequency of such focal lesions in humans.…”