A Study on the Treatment Strategy of NVG Secondary to PDR

Exclusion Criteria

• •(i) coexistent ocular disease that may interfere with visual outcome; (ii) previous history of vitrectomy or anti-VEGF pharmacotherapy in either eye; (iii) a macula-involving retinal detachment for \>6 months in the study eye; (iv) severe external ocular infection; (v) usage of anticoagulant or antiplatelet therapy; (vi) preoperative or postoperative poor diabetes control \[serum hemoglobin A1c (HbA1c) \>11.0%\]; (vii) uncontrolled systemic diseases, such as hypertension, cardiac diseases or presenting abnormal coagulation-associated blood diseases.