First launched in 2008 based on the pioneering scientific work of Professor Robert Stegmann and Dr. Murray Johnstone1 – 4, the iTrack™ canaloplasty microcatheter is both an engineering feat and a clinical triumph.

Measuring just 220 microns in diameter – the equivalent of several strands of hair – the iTrack™ comprises a sophisticated set of inner workings including a proprietary guide-wire mechanism that enables it to traverse the full 360° of the canal in a single intubation. It also features a fiber optic for illuminating the distal tip. The iTrack™ also enables you to customize the amount of OVD delivered on an individual patient basis. 

Not only does iTrack™ break the herniations that we see in the canal, but it also viscodilates. So, it’s really pushing out the entire distal channel and also opening up the trabecular meshwork.”

+100 Microliters of OVD +100 MICROLITERS OF OVD

iTrack™ delivers +100 microliters of OVD* over 360° of the canal. As observed via blanching of the episcleral veins immediately following the procedure4, iTrack™ improves flow through the entire conventional outflow system, including the distal portion.

* Testing using a robotically controlled ViscoInjector™ with time-recording mass data to simulate the delivery of OVD over 360° of Schlemm’s canal. Data available upon request.


The iTrack™ canaloplasty microcatheter is the only device to deliver OVD into Schlemm’s canal via a patented, pressurized mechanism (Patent No. US7,967,772,B2). 


With the iTrack™ canaloplasty microcatheter you can adjust the amount of OVD delivered based on the patency of Schlemm’s canal.


With a flexible design and internal guide-wire, iTrack™ is the only canaloplasty device that can catheterize 360° of the canal during a single intubation.


A malleable yet rigid internal guide-wire within the iTrack™ canaloplasty microcatheter may minimize the risk of creating an artificial pathway. It also enables you to push through herniations and to maneuver through tight areas of the canal.


A proprietary illuminated fiber optic tip provides continuous location feedback and helps to safeguard against misdirection of the iTrack™ canaloplasty microcatheter into the suprachoroidal space or the collector channels.

In Vivo Aqueous Venography for Glaucoma

Modification to Ab Interno Canaloplasty (ABiC) and Gonioscopy Assisted Transluminal Trabeculotomy (GATT) that provides real time 360 degree in vivo aqueous v…

1. Smit BA, Johnstone MA. Effects of viscoelastic injection into Schlemm’s canal in primate and human eyes: potential relevance to viscocanalostomy. Ophthalmology. 2002;109(4):786 – 792. 2. Stegmann R, Pienaar A, Miller D. Viscocanalostomy for open-angle glaucoma in black African patients. J Cataract Refract Surg. 1999;25(3):316 – 322. 3. Johnstone MA, Grant WM. Microsurgery of Schlemm’s canal and the human aqueous outflow system. Am J Ophthalmol 1973;76:906 – 17. 4. Grieshaber MC, Pienaar A, Olivier J, Stegmann R. Clinical evaluation of the aqueous outflow system in primary open-angle glaucoma for canaloplasty. Invest Ophthalmol Vis Sci. 2010;51(3):1498 – 1504.

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