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Anatomy of the vertical lacrimal canaliculus and lacrimal punctum: a macroscopic study.
Ophthalmic Plast Reconstr Surg 2011 Sep-Oct; 27(5):384-6OP

Abstract

PURPOSE

To characterize the macroscopic anatomy of the vertical lacrimal canaliculus and the lacrimal punctum in relation to the tarsal plate.

METHODS

Twenty-eight eyelids of 7 cadavers (mean age at death, 79.1 years; range, 65-93 years) were used for the investigation. The harvested eyelids were incised vertically around the central part of the upper and lower eyelids. The whole superior border of the upper tarsal plate and the whole inferior border of the lower tarsal plate were exposed by removing the soft tissues adjacent to them. We first examined whether these tarsal plates contained a lacrimal punctum. If the lacrimal punctum was found, we inserted a lacrimal probe to the punctum and measured the length covered by the tarsal plate using a millimeter ruler.

RESULTS

All the tarsal plates contained the lacrimal punctum, and the mean length of the canaliculi covered by the tarsal plates was 2.82 mm (range, 2.3-3.0 mm) in the upper eyelid and 2.39 mm (range, 2.3-2.5 mm) in the lower eyelid.

CONCLUSIONS

Since the length of the vertical lacrimal canaliculus including the lacrimal punctum is generally 2 mm, they are considered as tarsal components in both the upper and lower eyelids.

Authors+Show Affiliations

Department of Ophthalmology, Aichi Medical University, Nagakute, Aichi, Japan.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

21562437

Citation

Takahashi, Yasuhiro, et al. "Anatomy of the Vertical Lacrimal Canaliculus and Lacrimal Punctum: a Macroscopic Study." Ophthalmic Plastic and Reconstructive Surgery, vol. 27, no. 5, 2011, pp. 384-6.
Takahashi Y, Kakizaki H, Nakano T, et al. Anatomy of the vertical lacrimal canaliculus and lacrimal punctum: a macroscopic study. Ophthalmic Plast Reconstr Surg. 2011;27(5):384-6.
Takahashi, Y., Kakizaki, H., Nakano, T., Asamoto, K., Ichinose, A., & Iwaki, M. (2011). Anatomy of the vertical lacrimal canaliculus and lacrimal punctum: a macroscopic study. Ophthalmic Plastic and Reconstructive Surgery, 27(5), pp. 384-6. doi:10.1097/IOP.0b013e318219a54b.
Takahashi Y, et al. Anatomy of the Vertical Lacrimal Canaliculus and Lacrimal Punctum: a Macroscopic Study. Ophthalmic Plast Reconstr Surg. 2011;27(5):384-6. PubMed PMID: 21562437.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Anatomy of the vertical lacrimal canaliculus and lacrimal punctum: a macroscopic study. AU - Takahashi,Yasuhiro, AU - Kakizaki,Hirohiko, AU - Nakano,Takashi, AU - Asamoto,Ken, AU - Ichinose,Akihiro, AU - Iwaki,Masayoshi, PY - 2011/5/13/entrez PY - 2011/5/13/pubmed PY - 2011/12/13/medline SP - 384 EP - 6 JF - Ophthalmic plastic and reconstructive surgery JO - Ophthalmic Plast Reconstr Surg VL - 27 IS - 5 N2 - PURPOSE: To characterize the macroscopic anatomy of the vertical lacrimal canaliculus and the lacrimal punctum in relation to the tarsal plate. METHODS: Twenty-eight eyelids of 7 cadavers (mean age at death, 79.1 years; range, 65-93 years) were used for the investigation. The harvested eyelids were incised vertically around the central part of the upper and lower eyelids. The whole superior border of the upper tarsal plate and the whole inferior border of the lower tarsal plate were exposed by removing the soft tissues adjacent to them. We first examined whether these tarsal plates contained a lacrimal punctum. If the lacrimal punctum was found, we inserted a lacrimal probe to the punctum and measured the length covered by the tarsal plate using a millimeter ruler. RESULTS: All the tarsal plates contained the lacrimal punctum, and the mean length of the canaliculi covered by the tarsal plates was 2.82 mm (range, 2.3-3.0 mm) in the upper eyelid and 2.39 mm (range, 2.3-2.5 mm) in the lower eyelid. CONCLUSIONS: Since the length of the vertical lacrimal canaliculus including the lacrimal punctum is generally 2 mm, they are considered as tarsal components in both the upper and lower eyelids. SN - 1537-2677 UR - https://www.unboundmedicine.com/medline/citation/21562437/Anatomy_of_the_vertical_lacrimal_canaliculus_and_lacrimal_punctum:_a_macroscopic_study_ L2 - http://dx.doi.org/10.1097/IOP.0b013e318219a54b DB - PRIME DP - Unbound Medicine ER -