Figure 1. Comparison of wound closure time and IOP after 23-G vitrectomy and 20-G vitrectomy for RD. A: Comparison of wound closure time after 23-G vitrectomy and 20-G vitrectomy for RD in enrolled studies showed that four included studies revealing the postoperative wound closure time in the 23-G group was shorter than that in the 20-G group. B: Comparison of IOP after 23-G vitrectomy and 20-G vitrectomy for RD in enrolled studies showed that three included studies demonstrating that postoperative IOP in the 23-G group was lower than that in the 20-G group. C: Comparison of the incidence of MH after 23-G vitrectomy and 20-G vitrectomy for RD in enrolled studies showed that seven included studies presenting that the postoperative incidence of MH in the 23-G group was obviously lower than that in the 20-G group; 23-G vitrectomy, 23-gauge vitrectomy; 20-G vitrectomy, 20-gauge vitrectomy; RD, retinal detachment; IOP, intraocular pressure; MH, macular hole.