Quantitative assessment of changes in trabeculectomy blebs after laser suture lysis using anterior segment coherence tomography

摘要

Aim: To quantify ctianges in bleb morphology after laser suture lysis (LSL) using anterior segment optical coherence tomography (AS-OCT). Methods: This was a prospective observational case series of patients who underwent trabeculectomy surgery with mitomycin-C and required subsequent LSL. Subjects were assessed before and immediately after LSL, and at 3 months after LSL. At each visit, a standardized cross-sectional AS-OCT image of the bleb was obtained, from which a masked observer measured bleb height (hb), cavity height (hc), wall cross sectional area (Aw). cavity cross sectional area (Ac), and bleb cross sectional area (Ab) using custom software.