Fig. 3From: Comparative outcome analysis of bleb needling of fibrotic blebs in the clinic versus the operating room: a retrospective case seriesThere is no difference in Kaplan-Meier survival of success for bleb needling performed in the clinic vs. the OR (P = 0.82, a) or after trabeculectomy vs. ExPress shunt vs. XEN gel stent (P = 0.23, b)Back to article page