Huang P, Wang H, Chen F, et al. - In this retrospective case-series study, researchers sought to assess morphological and microperimetric outcomes 6 months after free internal limiting membrane (ILM) flap tamponade technique for large idiopathic macular holes (IMHs). They included 22 patients (22 eyes) with large IMHs (Stage III or Stage IV, minimum diameter > 400 um) who had 23-gauge pars plana vitrectomy with ILM peeling, free ILM tamponade and fluid-air exchange at Shanghai General Hospital from November 2016 to December 2017. The combination of vitrectomy with ILM peeling and free ILM flap tamponade technique leads to successful morphological and functional recovery for large IMHs. A prognostic indicator for postoperative best-corrected visual acuity could be preoperative foveal sensitivity.