Investigative ophthalmology & visual science
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Invest. Ophthalmol. Vis. Sci. · Nov 2005
Parasympathetic mediated pupillary dilation elicited by lingual nerve stimulation in cats.
To determine the autonomic efferent nerve pathways for the reflex pupillary dilation elicited by somatic stimulation in cats. ⋯ These results indicate that the Vsp and EW nucleus act as bulbar relay centers for pupillary dilation elicited by LN stimulation and suggest that the efferent arc of the response is a parasympathetic pathway. The contralateral pupillary dilation appears to be mediated, at least in part, by fibers projecting from the Vsp to the contralateral EW nucleus.