Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Visual acuity
RCT	150 people, 150 eyes with pseudophakic rhegmatogenous retinal detachment (RRD)	Mean visual acuity on the logMAR scale 1 year 0.40 with scleral buckling 0.33 with pars plana vitrectomy with infusion of short-acting gas	P = 0.26		Not significant
RCT	150 people, 150 eyes with pseudophakic RRD	Proportion of people with vision of 20/40 or better on Snellen scale 1 year 49/75 (65%) with scleral buckling 54/75 (72%) with pars plana vitrectomy with infusion of short-acting gas	Significance not assessed
RCT	50 people, 50 eyes with pseudophakic RRD	Mean best corrected Snellen visual acuity (BCVA, expressed as a decimal) 6 months 0.19 with scleral buckling 0.28 with pars plana vitrectomy with infusion of long-acting gas	P = 0.034	Effect size not calculated	vitrectomy
RCT	225 people, 225 eyes with pseudophakic or aphakic RRD	Proportion of eyes with a visual acuity of 20/40 or better on the Snellen scale 6 months 11/86 (13%) with scleral buckling 7/62 (11%) with pars plana vitrectomy with infusion of short-acting gas	P = 0.78		Not significant
RCT	265 people, 265 eyes with pseudophakic or aphakic RRD Subgroup analysis	Mean BCVA (logMAR units) 1 year 0.46 with scleral buckling 0.38 with pars plana vitrectomy with infusion of short-acting gas	Treatment difference +0.09 95% CI –0.02 to +0.2 P = 0.1033 Results should be interpreted with caution (see further information on studies for full details)		Not significant