Intranasal tear neurostimulation increases acute tear production

Edward J. Holland
NEW ORLEANS — Data from two studies reinforce the finding that intranasal tear neurostimulation results in significantly increased acute tear production compared with either active extranasal or sham intranasal applications, a speaker said.
“As we’ve learned over the last few years, stimulation of the trigeminal afferent nerve in the nasal mucosa triggers the nasolacrimal reflex pathway, and this contributes both to basal and stimulated tear production,” Edward J. Holland, MD, said at the American Academy of Ophthalmology meeting. “The intranasal