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Canaloplasty

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Surgical Innovations in Glaucoma

Abstract

Canaloplasty is a non-penetrating glaucoma procedure that adopts an ab externo approach to improve aqueous outflow through the conventional pathway. Using a microcatheter with fiber-optic light guidance, a nonabsorbable suture is passed throughout the entire Schlemm’s canal and is tightened to put the trabecular meshwork on stretch, thereby maintaining canal patency and enhancing outflow. Potential complications are similar to those encountered in traditional penetrating procedures such as trabeculectomy, but given that no patent ostium or iridectomy is required, canaloplasty has lower risks of potentially devastating complications such as hypotony, choroidal effusion, or suprachoroidal hemorrhage. Studies have shown the efficacy of canaloplasty to be better than modest; thus, patients with mild to moderate open-angle glaucoma who require mid-teens target IOP are suitable candidates. Though a technically demanding procedure, canaloplasty’s excellent safety profile makes it a valuable surgical alternative in patients where early surgery is favorable and/or in high-risk cases.

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Author information

Authors and Affiliations

  1. Division of Ophthalmology, Department of Surgery, McMaster University, Waterloo Regional Campus, Suite 411, 564 Belmont Ave West, Kitchener, ON, N2M 5N6, Canada

    Toby Yiu Bong Chan MD, FRCSC

  2. Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, ON, Canada

    Iqbal Ike K. Ahmed MD, FRCSC

Authors
  1. Toby Yiu Bong Chan MD, FRCSC
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  2. Iqbal Ike K. Ahmed MD, FRCSC
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Corresponding author

Correspondence to Toby Yiu Bong Chan MD, FRCSC .

Editor information

Editors and Affiliations

  1. Department of Surgery, Rocky Vista University, Parker, CO, USA

    John R. Samples MD

  2. Western Glaucoma Foundation, Portland, OR, USA

    John R. Samples MD

  3. Cornea Consultants of Colorado, Littleton, CO, USA

    John R. Samples MD

  4. The Eye Clinic, Portland, OR, USA

    John R. Samples MD

  5. Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, ON, Canada

    Iqbal Ike K. Ahmed MD, FRCSC

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Chan, T.Y.B., Ahmed, I.I.K. (2014). Canaloplasty. In: Samples, J.R., Ahmed, I.I.K. (eds) Surgical Innovations in Glaucoma. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-8348-9_14

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  • DOI: https://doi.org/10.1007/978-1-4614-8348-9_14

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  • Publisher Name: Springer, New York, NY

  • Print ISBN: 978-1-4614-8347-2

  • Online ISBN: 978-1-4614-8348-9

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