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A review of the iStent® trabecular micro-bypass stent: safety and efficacy

Authors Wellik S, Dale E

Received 3 February 2015

Accepted for publication 13 March 2015

Published 15 April 2015 Volume 2015:9 Pages 677—684

DOI https://doi.org/10.2147/OPTH.S57217

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 3

Editor who approved publication: Dr Scott Fraser


Sarah R Wellik, Elizabeth A Dale

Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami, Miami, FL, USA

Abstract: There is a significant demand for procedures that can effectively treat glaucoma with low risk and good visual outcomes. To fill this void, procedures termed “minimally invasive glaucoma surgery”, are gaining in popularity. This review will focus on the safety and efficacy of one such minimally invasive glaucoma surgery procedure, the trabecular micro-bypass stent. This stent is intended to lower intraocular pressure by directly cannulating Schlemm’s canal and thereby enhancing aqueous outflow. Recent randomized controlled trials and case series have demonstrated the micro-bypass stent to be a relatively safe procedure, with limited complications and no serious adverse sequelae. The most common complication across all studies was stent obstruction or malposition, which generally did not result in any adverse outcome in vision or pressure control. In addition, increased rates of hypotony, choroidal hemorrhage, or infection were not seen with the micro-bypass stent in comparison to cataract surgery alone.

Keywords: glaucoma, minimally invasive glaucoma surgery, MIGS, Schlemm’s canal
 

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