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Important points in examining the lower opening of nasolacrimal canal using hard type endoscope Shu Iwai 1 1Iwai Eye Clin pp.2009-2013
Published Date 2004/10/15
DOI https://doi.org/10.11477/mf.1410100777
  • Abstract
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 To each of the patients with epiphora,nasolacrimal tube was inserted,and tip of the nasolacrimal tube at intranasal opening was confirmed. The results of our study suggest that special care must be taken on the following points for the purpose of confirming the opening by using intranasal endoscope:(1)Accurate probing must be carried out with special care and consideration on average value(14mm)of the distance from superior lacrimal puntum to nasal wall of lacrimal sac,(2)Hemostatic and contraction procedure for nasal mucasa should be performed by using vasoconstrictor or diluted Bosmin prior to the endoscopy,and 3-dimensional angle for inferior nasal meatus must be identified,(3)Using endoscope with inner diameter of 2.7mm and 4.0mm,average distance from nostril to the opening of nasolacrimal canal(27-43mm,average 34mm)should be determined,and the entire intranasal image and 3-dimensional positional relationship of lacrimal duct should be identified.


Copyright © 2004, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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