What controls aqueous humour outflow resistance?

Mark Johnson*

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

395 Scopus citations


The bulk of aqueous humour outflow resistance is generated in or near the inner wall endothelium of Schlemm's canal in normal eyes, and probably also in glaucomatous eyes. Fluid flow through this region is controlled by the location of the giant vacuoles and pores found in cells of the endothelium of Schlemm's canal, but the flow resistance itself is more likely generated either in the extracellular matrix of the juxtacanalicular connective tissue or the basement membrane of Schlemm's canal. Future studies utilizing in vitro perfusion studies of inner wall endothelial cells may give insights into the process by which vacuoles and pores form in this unique endothelium and why inner wall pore density is greatly reduced in glaucoma.

Original languageEnglish (US)
Pages (from-to)545-557
Number of pages13
JournalExperimental eye research
Issue number4
StatePublished - Apr 2006


  • Glaucoma
  • Hydraulic conductivity
  • Schlemm's canal

ASJC Scopus subject areas

  • Sensory Systems
  • Cellular and Molecular Neuroscience
  • Ophthalmology


Dive into the research topics of 'What controls aqueous humour outflow resistance?'. Together they form a unique fingerprint.

Cite this