Anatomy

Schlemm's Canal

A circular vascular-like structure in the anterior chamber of the eye bounded anterolaterally by the internal scleral sulcus and posteriorly by the trabecular meshwork. It is a part of a pathway where the AQUEOUS HUMOR from the ANTERIOR CHAMBER of the eye passes through the TRABECULAR MESHWORK, drains into the lumen of Schlemm’s canal, and subsequently returns to blood circulation into the veins of the SCLERA.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A circular vascular-like structure in the anterior chamber of the eye bounded anterolaterally by the internal scleral sulcus and posteriorly by the trabecular meshwork. It is a part of a pathway where the AQUEOUS HUMOR from the ANTERIOR CHAMBER of the eye passes through the TRABECULAR MESHWORK, drains into the lumen of Schlemm’s canal, and subsequently returns to blood circulation into the veins of the SCLERA.

MeSH Record

Classification

Broader headings

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MeSH Record

Synonyms

12 entry terms
  • Canal of Schlemm
  • Circular Channel, Limbis
  • Schlemm Canal
  • Scleral Venous Sinus
  • Sinus Venosus Sclerae
  • Canal, Schlemm
  • Canal, Schlemm's
  • Circular Channels, Limbis
  • Limbis Circular Channel
  • Limbis Circular Channels
  • Schlemm's Canals
  • Schlemms Canal

MeSH Record

Aspects Covered

24 allowable subheadings

Indexed with the subheadings abnormalities, anatomy & histology, blood supply, chemistry, cytology, diagnostic imaging, drug effects, embryology, enzymology, growth & development, immunology, injuries, innervation, metabolism, microbiology, parasitology, pathology, physiology, physiopathology, radiation effects, surgery, transplantation, ultrastructure, virology.

MeSH Record

History Note

2023

MeSH Record

Previous Indexing

  • Cornea (1966-2022)

MeSH Hierarchy

Tree Number

AMA Style

References

  1. National Library of Medicine. Schlemm's Canal. Medical Subject Headings (MeSH). 2026. Unique ID D000092662. http://id.nlm.nih.gov/mesh/2026/D000092662
  2. Schlemm's Canal. In: Wikipedia. https://en.wikipedia.org/wiki/Schlemm%27s_canal
  3. Schlemm's Canal. In: Wikidata. https://www.wikidata.org/wiki/Q1535320