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SIMPLE MANOMETRIC PROCEDURE FOR TEAR PATHWAYS
Author(s) -
KORCHMAROS IMRE
Publication year - 1972
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.1972.tb05958.x
Subject(s) - cannula , suction , nasal cavity , medicine , anatomy , surgery , mechanical engineering , engineering
We introduced into both canaliculi and the nasal cavity a cannula which was connected to a manometer by a rubber pipe. The air pressure could be directed away from the nasal cavity by pressing and sucking the air at held nostrils, and away from the tear ducts by injecting air through the wall of the rubber pipe. In addition to the examination of the physiological variations (at what suction and pressure the valves close, etc.), the method could be used also to determine the mechanism of certain pathological conditions.