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. 2016 May 17;6:26080. doi: 10.1038/srep26080

Figure 1. Diagram of the study design.

Figure 1

Patients who met the inclusion criteria were randomized 1:1 to receive a trabeculectomy or Ex-PRESS implantation. After randomization, one patient in the trabeculectomy group was excluded because the preoperative intraocular pressure (IOP) was less than 18 mmHg.