The human retina contains some 100 million photoreceptor cells. When these are stimulated with light, they communicate that information to the brain and we perceive light. Researchers have now ...

The keen practitioner can gain helpful information simply by assessing pupillary responses. The pupils will offer substantial insight into one’s ocular health and the state of the visual pathways ...

The search for the lesion(s) was targeted to the visual pathways posterior to the LGN, because there was bilateral visual loss with normal pupillary light reflexes. This finding places the causative ...

Neurological Pupil index Neurological Pupil index scores (NPI-Diff) may be an effective early quantitative measure to indicate neurologic decline even in patients in neurocritical care units with ...

Objective Pupillary light reflex (PLR) metrics are enhanced in adolescents with concussion. It is not known if these PLR metrics in concussed adolescents return back to the normal range at recovery.