Patient characteristics and ophthalmic outcomes
PDR, NVG, retinal detachment
EYE, RETINAL DETACHMENT, LOW VISION
A total of 491 patients underwent primary vitrectomy for PDR at Tianjin Medical University Eye Hospital from January 2016 to October 2021. Among them, 186 patients (250 eyes) who met the eligibility criteria were included in this study. The mean follow-up duration was 32 ± 21 months. For all eyes, the mean postoperative BCVA was 1.53 ± 0.66 logMAR, and it increased to 0.8 ± 0.85 logMAR at the last follow-up (P<0.001). The total incidence of long-term low vision was 43.6%. The rate of improvement, invariant, and worsening of BCVA was 68.8%, 15.2%, and 16.0%, respectively. The rate of the final BCVA of ≥0.7, 0.3–0.7, 0.1–0.3, and<0.1 was 22%, 34.4%, 18.4%, and 25.2%, respectively. Final anatomical success was achieved in 235 eyes (94%). During the follow-up period, 40 eyes (16%) underwent re-vitrectomy for recurrent VH in 31 eyes and retinal detachment in 9 eyes, and 18 eyes (7.2%) developed NVG.