Fig. 2

Intraoperative photographs of the resection operation of the overhanging filtering bleb. a The filtering bleb was sufficiently thin-walled that the scleral incision could be seen through the bleb. b The overhanging portion of the bleb was bluntly dissected from the cornea gently, without bleeding. c The complete marginal vascular arcade at the backside of the bleb, fibrous bundles at the limbus (red arrow), and epithelium defect of the corresponding part of cornea. d Bleeding during blunt dissection of the fibrous bundles (white arrow). e, f The overhanging portion of the bleb was lifted with forceps and excised with scissors just anterior to the limbus. g An aqueous humor leak was marked by blood (black arrow) and followed by the shallowing of the anterior chamber. h The incision was continuously sutured with 10-0 nylon wire with an anterior bite through the cornea, just anterior to the limbus, and a posterior bite through the conjunctiva and Tenon’s tissue posterior to the bleb. i The conjunctiva was fragile and tore during suturing although lifted gently with smooth forceps