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Incisional Therapies: Canaloplasty and New Implant Devices

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Abstract

Incisional surgery for the treatment of glaucoma was first described in 1896 with surgical iridectomy, followed by corneo-scleral trephination in the 1920s and full thickness procedures in the 1950s. In 1968, Cairns described the technique of trabeculectomy, still considered by many today to be the gold standard of glaucoma surgery. Techniques have been modified and the addition of adjunctive antimetabolites has perhaps improved the original procedure to enhance long-term success and survival, as measured by intraocular pressure reduction and control, but the common final goal remains to create and maintain a nonphysiologic fistula from the anterior chamber to the subconjunctival space. Although lowering of intraocular pressure (IOP) is undisputable and well established, the generous complication profile of these procedures is well known. Both short-term and long-term risks of blebitis, endophthalmitis, hypotony, overfiltration, bleb leaks, dysesthesia, overhang, encapsulation, corneal dellen, endo­thelial cell loss, episcleral fibrosis, aqueous misdirection, and accelerated cataract formation are some of the many potential complications, most of which are lifetime risks for patients undergoing trabeculectomy.

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Authors and Affiliations

  1. Department of Ophthalmology and Vision Sciences, Credit Valley Eye Care, University of Toronto, Mississauga, ON, Canada

    Diamond Y. Tam MD

  2. Department of Ophthalmology, Credit Valley Eye Care, Mississauga, ON, Canada

    Iqbal “Ike” K. Ahmed MD, FRCSC

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  1. Diamond Y. Tam MD
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  2. Iqbal “Ike” K. Ahmed MD, FRCSC
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    Paul N. Schacknow

  2. Casey Eye Institute, Dept. Ophthalmology, Oregon Health & Sciences University, SW. Terwilliger Blvd. 3375, Portland, 97201-4197, USA

    John R. Samples

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Tam, D.Y., Ahmed, I.“.K. (2010). Incisional Therapies: Canaloplasty and New Implant Devices. In: Schacknow, P., Samples, J. (eds) The Glaucoma Book. Springer, New York, NY. https://doi.org/10.1007/978-0-387-76700-0_67

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