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목적 : To compare the surgical outcomes of air tamponade versus no tamponade on visual acuity, macular thickness and peripapillary retinal nerve fiber layer (pRNFL) thickness profiles after pars plana vitrectomy (PPV) for idiopathic epiretinal membrane (ERM).
방법 : We retrospectively reviewed the medical records of 82 eyes of 82 consecutive patients with idiopathic ERM who underwent 23-gauge transconjunctival sutureless vitrectomy with (air tamponade group, 44 eyes) or without (no tamponade group, 38 eyes) air endo-tamponade. Best corrected visual acuity (BCVA), central foveal thickness (CFT), total macular volume (TMV) and pRNFL thickness were compared between the two groups before and after the operation.
결과 : The subjects were 65.9 ± 7.3 years old and were followed up for 14.6 ± 8.0 months on average. Overall, patients who underwent PPV with air tamponade and no tamponade showed no statistically significant difference in LogMAR visual acuity outcomes at pre-operatively (P=0.916) and postoperatively at 2 week (P=0.578), 1 M (P=0.981), 3 M (P=0.363), 6 M (P=0.365) and 12 M (P=0.765). Foveal thickness decreased significantly after surgery in both air tamponade and no tamponade groups. There was no significant difference in CFT, TMV, and pRNFL thickness between the two groups at every follow-up.
결론 : In idiopathic ERM, equivalent BCVA, CFT, TMV and pRNFL were observed postoperatively from 1 week to 1 year for both air tamponade and no tamponade groups after PPV. Thus, air tamponade might not be an imperative procedure in PPV for idiopathic ERM.
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