Abstract:

Objective To analyse the outcomes of 23-G vitrectomy and 20-G vitrectomy for the treatment of retinal detachment. Methods One hundred and fifteen patients (115 eyes) with retinal detachment were enrolled, and were treated with 23-G minimally invasive vitrectomy (group A, 52 patients, 52 eyes) or 20-G vitrectomy (group B, 63 patients, 63 eyes). The duration of operation and occurrence of complications during operation were recorded. Patients were followed up for 6 to 15 months after operation, the occurrence of retinal reattachment, visual acuity (logMAR visual acuity) and occurrence of complications were observed. The related parameters were statistically analysed and compared. Results There was no significant difference in the duration of operation between group A and group B [(67±18) min vs (70±19）min, P>0.05]. The main complication during operation was iatrogenic retinal hole, with 2 eyes in group A and 3 eyes in group B. The last follow-up revealed that there were 49 eyes with retinal reattachment in group A (reattachment rate, 94.2%), and logMAR visual acuity increased 0.337±0.046. There were 59 eyes with retinal reattachment in group B (reattachment rate, 93.7%), and logMAR visual acuity increased 0.367±0.052. There was no significant difference in retinal reattachment rate and degree of visual acuity increase between two groups (P>0.05). Conclusion 23-G vitrectomy and 20-G vitrectomy may yield similar outcome for treatment of retinal detachment, and 23-G minimally invasive vitrectomy can be applicable for treatment of various vitreoretinal diseases with retinal detachment.

Key words: 23-G minimally invasive vitrectomy, 20-G vitrectomy, retinal detachment, complication