Course of the vertical portion of the lower lacrimal canaliculus

Hirohiko Kakizaki1, Yasuhiro Takahashi2, Takashi Nakano3, Ken Asamoto3, Shinsuke Kinoshita1, Masayoshi Iwaki1Departments of 1Ophthalmology and 3Anatomy, Aichi Medical University, Nagakute, Aichi, Japan; 2Department of Ophthalmology and Visual Sciences, Osaka City University Graduate School of Medici...

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Autores principales:	Hirohiko Kakizaki, Yasuhiro Takahashi, Takashi Nakano, Ken Asamoto, Shinsuke Kinoshita, Masayoshi Iwaki
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2008
Materias:	Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/e7853690be39422a827bac62f234edd8
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spelling	oai:doaj.org-article:e7853690be39422a827bac62f234edd82021-12-02T02:42:32ZCourse of the vertical portion of the lower lacrimal canaliculus1177-54671177-5483https://doaj.org/article/e7853690be39422a827bac62f234edd82008-06-01T00:00:00Zhttp://www.dovepress.com/course-of-the-vertical-portion-of-the-lower-lacrimal-canaliculus-a1685https://doaj.org/toc/1177-5467https://doaj.org/toc/1177-5483Hirohiko Kakizaki1, Yasuhiro Takahashi2, Takashi Nakano3, Ken Asamoto3, Shinsuke Kinoshita1, Masayoshi Iwaki1Departments of 1Ophthalmology and 3Anatomy, Aichi Medical University, Nagakute, Aichi, Japan; 2Department of Ophthalmology and Visual Sciences, Osaka City University Graduate School of Medicine, Abeno-ku, Osaka, JapanAbstract: The nomenclature of each part of the lacrimal canaliculus, for example the vertical portion, does not always reflect the true course. Since we have sometimes observed findings suggesting the so called vertical portion of the lower lacrimal canaliculus inclined laterally, we re-examined the course of the vertical portion. Twenty-eight postmortem lower eyelids in 16 Japanese were examined and divided into 2 groups. The first group was 14 lower eyelids of 7 cadavers. Eyelids were incised sagittally from the lower lacrimal punctum. The second group was 14 lower eyelids of 9 cadavers; these were incised from the lower lacrimal punctum with 5 degrees lateral inclination to the sagittal plane. In the first group, 10 canaliculi of 7 cadavers were interrupted at the halfway point of the vertical portion. Four canaliculi of 4 cadavers included the whole length of the vertical portion. In the second group, all specimens included the whole length of the vertical portion. Most vertical portions of the lower lacrimal canaliculus demonstrated a laterally inclined course of approximately 5 degrees, although some took a completely vertical course.Keywords: vertical portion, lacrimal canaliculus, lower, laterally Hirohiko KakizakiYasuhiro TakahashiTakashi NakanoKen AsamotoShinsuke KinoshitaMasayoshi IwakiDove Medical PressarticleOphthalmologyRE1-994ENClinical Ophthalmology, Vol 2008, Iss Issue 4, Pp 753-756 (2008)
institution	DOAJ
collection	DOAJ
language	EN
topic	Ophthalmology RE1-994
spellingShingle	Ophthalmology RE1-994 Hirohiko Kakizaki Yasuhiro Takahashi Takashi Nakano Ken Asamoto Shinsuke Kinoshita Masayoshi Iwaki Course of the vertical portion of the lower lacrimal canaliculus
description	Hirohiko Kakizaki1, Yasuhiro Takahashi2, Takashi Nakano3, Ken Asamoto3, Shinsuke Kinoshita1, Masayoshi Iwaki1Departments of 1Ophthalmology and 3Anatomy, Aichi Medical University, Nagakute, Aichi, Japan; 2Department of Ophthalmology and Visual Sciences, Osaka City University Graduate School of Medicine, Abeno-ku, Osaka, JapanAbstract: The nomenclature of each part of the lacrimal canaliculus, for example the vertical portion, does not always reflect the true course. Since we have sometimes observed findings suggesting the so called vertical portion of the lower lacrimal canaliculus inclined laterally, we re-examined the course of the vertical portion. Twenty-eight postmortem lower eyelids in 16 Japanese were examined and divided into 2 groups. The first group was 14 lower eyelids of 7 cadavers. Eyelids were incised sagittally from the lower lacrimal punctum. The second group was 14 lower eyelids of 9 cadavers; these were incised from the lower lacrimal punctum with 5 degrees lateral inclination to the sagittal plane. In the first group, 10 canaliculi of 7 cadavers were interrupted at the halfway point of the vertical portion. Four canaliculi of 4 cadavers included the whole length of the vertical portion. In the second group, all specimens included the whole length of the vertical portion. Most vertical portions of the lower lacrimal canaliculus demonstrated a laterally inclined course of approximately 5 degrees, although some took a completely vertical course.Keywords: vertical portion, lacrimal canaliculus, lower, laterally
format	article
author	Hirohiko Kakizaki Yasuhiro Takahashi Takashi Nakano Ken Asamoto Shinsuke Kinoshita Masayoshi Iwaki
author_facet	Hirohiko Kakizaki Yasuhiro Takahashi Takashi Nakano Ken Asamoto Shinsuke Kinoshita Masayoshi Iwaki
author_sort	Hirohiko Kakizaki
title	Course of the vertical portion of the lower lacrimal canaliculus
title_short	Course of the vertical portion of the lower lacrimal canaliculus
title_full	Course of the vertical portion of the lower lacrimal canaliculus
title_fullStr	Course of the vertical portion of the lower lacrimal canaliculus
title_full_unstemmed	Course of the vertical portion of the lower lacrimal canaliculus
title_sort	course of the vertical portion of the lower lacrimal canaliculus
publisher	Dove Medical Press
publishDate	2008
url	https://doaj.org/article/e7853690be39422a827bac62f234edd8
work_keys_str_mv	AT hirohikokakizaki courseoftheverticalportionofthelowerlacrimalcanaliculus AT yasuhirotakahashi courseoftheverticalportionofthelowerlacrimalcanaliculus AT takashinakano courseoftheverticalportionofthelowerlacrimalcanaliculus AT kenasamoto courseoftheverticalportionofthelowerlacrimalcanaliculus AT shinsukekinoshita courseoftheverticalportionofthelowerlacrimalcanaliculus AT masayoshiiwaki courseoftheverticalportionofthelowerlacrimalcanaliculus
_version_	1718402256158588928

Course of the vertical portion of the lower lacrimal canaliculus

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