Clinical Data

iStent inject® W Clinical Data

Trabecular micro-bypass technology developed by Glaukos has been studied extensively around the world and its efficacy has been demonstrated in more than 130 peer-reviewed articles, 10 years of clinical use, and over 600,000 eyes.

The implantation of two trabecular bypass stents – without the benefit of cataract surgery – has shown in prospective clinical trials to both lower IOP to <15 mm Hg and reduce medication burden via a unique two stent approach:


iStent inject W builds on the trabecular micro-bypass technology of iStent inject, which has been proven effective in numerous studies in lowering IOP and reducing medication burden.

In one notable consecutive case study of iStent inject involving multiple international surgeons, average medication usage was reduced from 1.0 to 0.1 at 12 months.1

Another study conducted by multiple international surgeons demonstrated a mean IOP reduction of 47% vs. medicated screening at 18 months, finding that stents alone lowered IOP 5.1 mmHg from medicated screening.2

In a consecutive case series with three-year follow-up, mean IOP was 14.3 ± 1.7 mm Hg, representing a 37% reduction from preoperative medicated mean IOP of 22.6 ± 6.2 mm Hg, and 100% of eyes had an IOP ≤ 18 mm Hg.3

In the same consecutive case series, mean medication use was decreased from 2.5 to 0.8 medications at three years, a 68% reduction. And 74% of eyes were using 0 or 1 medication as compared to 21% preoperatively.3

1. Donnenfeld ED, Solomon KD, Voskanyan L, et al. A prospective 3-year follow-up trial of implantation of two trabecular microbypass stents in open-angle glaucoma. Clin Opth. 2015;9:2057-2065.
2. Samuelson TW. Outcomes of MIGS with Trabecular Micro-Bypass Stents and Prostaglandin in Open-Angle Glaucoma Subjects. Presented at the 2013 American Society of Cataract and Refractive Surgery Annual Meeting; April 19-23, 2013; San Francisco, California, USA.
3. Hengerer FH. Personal Experience with Second-Generation Trabecular Micro-Bypass Stents in Combination with Cataract Surgery in Patients with Glaucoma: 3-Year Follow-up. ASCRS 2018 Presentation.

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