Interventional Canaloplasty with the canal expander

Restoring the physiologic outflow pathway

Thanks to technical advances and continuous development of new surgical techniques, glaucoma surgery is no longer considered as the last resort for glaucoma therapy. The treatment paradigm has changed. We have more choices to offer to the patients than ever before.


Canaloplasty is a novel surgical approach that addresses the whole the pathway of the natural outflow of the eye. It has a proven low risk profile and a rapid post-operative recovery.


Canaloplasty is the logic evolution of viscocanalostomy, and addresses collapsed Schlemm canal and closure of the ostia of the outflow system by viscodilating the entire canal of Schlemm with a microcannula/-catheter.


Canaloplasty targets the real cause of the increased intraocular pressure at the level of the trabecular meshwork and Schlemm canal; injecting a viscoelastic gel into the Schlemm canal creates to disruptions of the trabecular meshwork and dilation of the canal and the collector channels. Aqueous humor outflow through the disrupted trabecular meshwork and the expanded canal is highly increased, and IOP is significantly reduced.


The new Stegmann Canal Expander® completes elegantly this procedure by a permanent dilation of the canal, and distension of the trabecular meshwork, the site of maximal resistance to aqueous humor outflow in open-angle glaucoma.


Implantation of the Stegmann Canal Expander® in canaloplasty distinguishes from other procedures by the unique features:

  • Comprehensive restoration of the natural outflow system in the eye
  • Non-penetrating (less invasive) and bleb-independent approach
  • Excellent control of intraocular pressure
  • High safety profile
  • Rapid visual recovery with high patients’ satisfaction and low impact of patients’ quality of life

The Stegmann Canal Expander® is the first implant to permanently distend the trabecular meshwork and dilate Schlemm canal and has received CE mark approval in 2012.


More information can be found in the Instruction for use PDF.