Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Visual acuity
RCT	416 people, 416 eyes with phakic rhegmatogenous retinal detachment (RRD) Subgroup analysis	Mean BCVA (logMAR units) 1 year 0.33 with scleral buckling 0.48 with pars plana vitrectomy with infusion of short-acting gas	Treatment difference 0.15 95% CI 0.00 to 0.29 P = 0.0005 Results should be interpreted with caution (see further information on studies for full details)	Effect size not calculated	scleral buckling
RCT	46 people aged 50 years and older, 46 eyes with phakic RRD involving the macula with recent posterior vitreous detachment and equatorial tears	BCVA of 0.8 or more 6 months 1/23 (4%) with scleral buckling 12/23 (52%) with pars plana vitrectomy with infusion short-acting gas combined with phacoemulsification surgery	P = 0.001	Effect size not calculated	vitrectomy
RCT	46 people aged 50 years and older, 46 eyes with phakic RRD involving the macula with recent posterior vitreous detachment and equatorial tears	Mean BCVA (logMAR) 6 months with scleral buckling with pars plana vitrectomy with infusion of short-acting gas combined with phacoemulsification surgery Absolute results reported graphically	P = 0.005	Effect size not calculated	vitrectomy
RCT	61 people, 61 eyes, with phakic RRD without proliferative vitreoretinopathy (PVR) of grade C or above	Mean BCVA (logMAR units) 1 week 0.84 with scleral buckling 2.0 with pars plana vitrectomy with infusion of long-acting gas plus 360 laser to peripheral retina	P = 0 (P value as reported in RCT)	Effect size not calculated	scleral buckling
RCT	61 people, 61 eyes, with phakic RRD without PVR of grade C or above	Mean BCVA (logMAR units) 1 month 0.699 with scleral buckling 1.14 with pars plana vitrectomy with infusion of long-acting gas plus 360 laser to peripheral retina	P = 0.006	Effect size not calculated	scleral buckling
RCT	61 people, 61 eyes, with phakic RRD without PVR of grade C or above	Mean BCVA (logMAR units) 3 months 0.676 with scleral buckling 0.773 with pars plana vitrectomy with infusion of long-acting gas plus 360 laser to peripheral retina	P = 0.395		Not significant
RCT	61 people, 61 eyes, with phakic RRD without PVR of grade C or above	Mean BCVA (logMAR units) 6 months 0.608 with scleral buckling 0.689 with pars plana vitrectomy with infusion of long-acting gas plus 360 laser to peripheral retina	P = 0.376		Not significant