Characteristics of the patients
vitreous hemorrhage
RETINA, VITREOUS HEMORRHAGE, MACULAR HOLE, MACULAR EDEMA, INTRAOCULAR PRESSURE
Ninety-four patients were enrolled initially, among whom 54 SOT contralateral eyes with BCVA (LogMAR) < 0.1 and OCTA signal strength > 8 were selected as control eyes. Among the treated eyes, 44 were excluded due to loss to follow-up (n = 21), scans with signal strength < 6 in OCTA (n = 13), ERM (n = 3), macular edema (n = 4), macular hole (n = 1), vitreous hemorrhage (n = 1), and retina redetachment (n = 1). Therefore, 50 eyes from 50 patients (27 males and 23 females; 53.6 ± 10.9 years of age) successfully treated by SO removal between June 2019 and December 2019 were assessed. The participants’ demographic features and preoperative information are shown in Table 
Demographic and presurgical features of the patients with SOTBCVA, LogMARBCVA (Snellen)0.69 ± 0.2920/79 ± 20/1100.05 ± 0.06720/22 ± 20/1500.434 ± 0.34720/44 ± 20/800.026 ± 0.04520/21 ± 20/250< 0.001< 0.001Data are shown as means ± SD unless otherwise stated. Pre-op, preoperative; BCVA, best-corrected visual acuity; logMAR, the logarithm of the minimum angle of resolution; SOT, silicone oil tamponade; IOP, intraocular pressure; SOR, silicone oil removal