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Search review questions

Each row is one question a systematic review asked: who, what, compared with what, and which outcome, with the effect it found and how certain that is. Words match anywhere in the field.

Limit to evidence status or GRADE (optional)

2,112 questions in 171 reviews · Eyes and Vision

current versions
No studies 587 · 27.8%Ungraded 95 · 4.5%Very low 446 · 21.1%Low 557 · 26.4%Moderate 361 · 17.1%High 66 · 3.1%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

QuestionEffectEvidenceStatus / GRADE
Anti‐VEGF vs no anti‐VEGF
Mean IOP, 4 to 6 weeks · people with neovascular glaucoma
Anti‐vascular endothelial growth factor for neovascular glaucoma (2023) · Cochrane
no estimate extracted3 studies · 173 participantsVery low
Anti‐VEGF vs no anti‐VEGF
Proportion of participants with improvement in visual acuity of 2 ETDRS lines or 0.2 logMAR units, 4 to 6 weeks · people with neovascular glaucoma
Anti‐vascular endothelial growth factor for neovascular glaucoma (2023) · Cochrane
RR 2.55 [1.6, 4.08]1 study · 93 participantsVery low
Anti‐VEGF vs no anti‐VEGF
Proportion of participants with complete regression of new iris vessels, 4 to 6 weeks · people with neovascular glaucoma
Anti‐vascular endothelial growth factor for neovascular glaucoma (2023) · Cochrane
RR 2.63 [1.65, 4.18]1 study · 93 participantsLow
Anti‐VEGF vs no anti‐VEGF
Proportion of participants with relief of pain and resolution of redness, 1 year · people with neovascular glaucoma
Anti‐vascular endothelial growth factor for neovascular glaucoma (2023) · Cochrane
no estimate extractedNRNo studies
Anti‐VEGF vs no anti‐VEGF
Proportion of participants with adverse events at various · people with neovascular glaucoma
Anti‐vascular endothelial growth factor for neovascular glaucoma (2023) · Cochrane
no estimate extracted6 participantsUngraded
Intervention NR
Mean BCVA (logMAR) · people with proliferative diabetic retinopathy undergoing vitrectomy
Anti‐vascular endothelial growth factors in combination with vitrectomy for complications of proliferative… (2023) · Cochrane
no estimate extracted13 studies · 699 participantsLow
Intervention NR
Early POVCH Â · people with proliferative diabetic retinopathy undergoing vitrectomy
Anti‐vascular endothelial growth factors in combination with vitrectomy for complications of proliferative… (2023) · Cochrane
RR 0.44 [0.34, 0.58]14 studies · 1038 participantsModerate
Intervention NR
Late POVCH Â · people with proliferative diabetic retinopathy undergoing vitrectomy
Anti‐vascular endothelial growth factors in combination with vitrectomy for complications of proliferative… (2023) · Cochrane
RR 0.47 [0.3, 0.74]11 studies · 579 participantsHigh
Intervention NR
Revision surgery for POVCH · people with proliferative diabetic retinopathy undergoing vitrectomy
Anti‐vascular endothelial growth factors in combination with vitrectomy for complications of proliferative… (2023) · Cochrane
RR 0.44 [0.15, 1.28]4 studies · 207 participantsModerate
Intervention NR
Revision surgery for recurrent traction and/or RRD · people with proliferative diabetic retinopathy undergoing vitrectomy
Anti‐vascular endothelial growth factors in combination with vitrectomy for complications of proliferative… (2023) · Cochrane
RR 0.5 [0.15, 1.66]4 studies · 145 participantsLow
Intervention NR
Intraoperative retinal breaks · people with proliferative diabetic retinopathy undergoing vitrectomy
Anti‐vascular endothelial growth factors in combination with vitrectomy for complications of proliferative… (2023) · Cochrane
RR 0.37 [0.24, 0.59]12 studies · 915 participantsHigh
Intervention NR
Silicone oil use · people with proliferative diabetic retinopathy undergoing vitrectomy
Anti‐vascular endothelial growth factors in combination with vitrectomy for complications of proliferative… (2023) · Cochrane
RR 0.46 [0.27, 0.8]10 studies · 591 participantsVery low
Face‐down positioning or posturing vs no face‐down positioning or posturing after macular hole surgery
Macular hole closure (anatomical assessment) · adults with idiopathic macular holes
Face‐down positioning or posturing after macular hole surgery (2023) · Cochrane
RR 1.05 [0.99, 1.12]8 studies · 699 participantsLow
Face‐down positioning or posturing vs no face‐down positioning or posturing after macular hole surgery
Improved visual acuity (ETDRS chart at 4 metres) · adults with idiopathic macular holes
Face‐down positioning or posturing after macular hole surgery (2023) · Cochrane
mean difference 2.043 studies · 217 participantsVery low
Face‐down positioning or posturing vs no face‐down positioning or posturing after macular hole surgery
Quality of life** (various metrics) · adults with idiopathic macular holes
Face‐down positioning or posturing after macular hole surgery (2023) · Cochrane
no estimate extracted2 studies · 178 participantsVery low
Face‐down positioning or posturing vs no face‐down positioning or posturing after macular hole surgery
Postoperative nerve compression injury (clinical assessment) · adults with idiopathic macular holes
Face‐down positioning or posturing after macular hole surgery (2023) · Cochrane
no estimate extracted8 studies · 699 participantsModerate
Anti‐vascular endothelial growth factor (anti‐VEGF) with or without pan‐retinal photocoagulation (PRP) vs PRP alone
Loss of 3 or more lines of ETDRS visual acuity ‐ not reported · people with proliferative diabetic retinopathy
Anti‐vascular endothelial growth factor for proliferative diabetic retinopathy (2023) · Cochrane
no estimate extractedNRNo studies
Anti‐vascular endothelial growth factor (anti‐VEGF) with or without pan‐retinal photocoagulation (PRP) vs PRP alone
LogMAR visual acuity(logMAR scale value of 0 = 6/6 vision, higher score = worse vision) · people with proliferative diabetic retinopathy
Anti‐vascular endothelial growth factor for proliferative diabetic retinopathy (2023) · Cochrane
no estimate extracted10 studies · 1172 participantsModerate
Anti‐vascular endothelial growth factor (anti‐VEGF) with or without pan‐retinal photocoagulation (PRP) vs PRP alone
Complete regression of new vessels (dichotomous outcome) · people with proliferative diabetic retinopathy
Anti‐vascular endothelial growth factor for proliferative diabetic retinopathy (2023) · Cochrane
RR 1.63 [1.19, 2.24]5 studies · 405 participantsModerate
Anti‐vascular endothelial growth factor (anti‐VEGF) with or without pan‐retinal photocoagulation (PRP) vs PRP alone
Regression of new vessels (continuous outcome): mean area of fluorescein leakage (mm2) fluorescein angiography · people with proliferative diabetic retinopathy
Anti‐vascular endothelial growth factor for proliferative diabetic retinopathy (2023) · Cochrane
no estimate extracted4 studies · 189 participantsLow
Anti‐vascular endothelial growth factor (anti‐VEGF) with or without pan‐retinal photocoagulation (PRP) vs PRP alone
Presence of vitreous haemorrhaged · people with proliferative diabetic retinopathy
Anti‐vascular endothelial growth factor for proliferative diabetic retinopathy (2023) · Cochrane
RR 0.72 [0.57, 0.9]6 studies · 1008 participantsModerate
Anti‐vascular endothelial growth factor (anti‐VEGF) with or without pan‐retinal photocoagulation (PRP) vs PRP alone
Need for vitrectomy · people with proliferative diabetic retinopathy
Anti‐vascular endothelial growth factor for proliferative diabetic retinopathy (2023) · Cochrane
RR 0.67 [0.49, 0.93]8 studies · 1248 participantsLow
Anti‐vascular endothelial growth factor (anti‐VEGF) with or without pan‐retinal photocoagulation (PRP) vs PRP alone
Quality of life (VFQ‐25 General health) · people with proliferative diabetic retinopathy
Anti‐vascular endothelial growth factor for proliferative diabetic retinopathy (2023) · Cochrane
no estimate extracted2 studies · 382 participantsLow
Anti‐vascular endothelial growth factor (anti‐VEGF) with or without pan‐retinal photocoagulation (PRP) vs PRP alone
Adverse events · people with proliferative diabetic retinopathy
Anti‐vascular endothelial growth factor for proliferative diabetic retinopathy (2023) · Cochrane
no estimate extracted6 studies · 1070 participantsVery low
Summary of findings 1: Efficacy and safety of IVT lampalizumab 4‐weekly (monthly) vs sham
Change in BCVA from baseline at 1 year (ETDRS letters) · adults with GA due to AMD
Complement inhibitors for age‐related macular degeneration (2023) · Cochrane
no estimate extracted3 studies · 1182 participantsHigh
Summary of findings 2: Efficacy and safety of IVT lampalizumab 6‐ to 8‐weekly (every other month) vs sham
Safety: Development of macular neovascularisation or exudative AMD at 1 year · adults with GA due to AMD
Complement inhibitors for age‐related macular degeneration (2023) · Cochrane
RR 1.7 [0.67, 4.28]3 studies · 1331 participantsLow
Summary of findings 2: Efficacy and safety of IVT lampalizumab 6‐ to 8‐weekly (every other month) vs sham
Safety: Development of endophthalmitis at 1 year · adults with GA due to AMD
Complement inhibitors for age‐related macular degeneration (2023) · Cochrane
RR 4.94 [0.24, 102.78]3 studies · 1331 participantsModerate
Summary of findings 2: Efficacy and safety of IVT lampalizumab 6‐ to 8‐weekly (every other month) vs sham
Loss of ≥ 15 letters BCVA at 1 year · adults with GA due to AMD
Complement inhibitors for age‐related macular degeneration (2023) · Cochrane
RR 0.98 [0.72, 1.33]2 studies · 1096 participantsModerate
Summary of findings 2: Efficacy and safety of IVT lampalizumab 6‐ to 8‐weekly (every other month) vs sham
Change in LLVA from baseline at 1 year (ETDRS letters) · adults with GA due to AMD
Complement inhibitors for age‐related macular degeneration (2023) · Cochrane
no estimate extracted2 studies · 1065 participantsHigh
Summary of findings 2: Efficacy and safety of IVT lampalizumab 6‐ to 8‐weekly (every other month) vs sham
Change in quality of life at 1 year (NEI VFQ‐25 composite score) · adults with GA due to AMD
Complement inhibitors for age‐related macular degeneration (2023) · Cochrane
no estimate extracted2 studies · 1003 participantsModerate
Summary of findings 3: Efficacy and safety of IVT pegcetacoplan 4‐weekly (monthly) vs sham
Change in BCVA from baseline at 1 year (ETDRS letters) · adults with GA due to AMD
Complement inhibitors for age‐related macular degeneration (2023) · Cochrane
no estimate extracted1 study · 164 participantsModerate
Summary of findings 3: Efficacy and safety of IVT pegcetacoplan 4‐weekly (monthly) vs sham
Change in untransformed GA lesion size from baseline at 1 year (mm²) · adults with GA due to AMD
Complement inhibitors for age‐related macular degeneration (2023) · Cochrane
no estimate extracted3 studies · 967 participantsHigh
Summary of findings 3: Efficacy and safety of IVT pegcetacoplan 4‐weekly (monthly) vs sham
Safety: Development of macular neovascularisation or exudative AMD at 1 year · adults with GA due to AMD
Complement inhibitors for age‐related macular degeneration (2023) · Cochrane
RR 4.47 [0.41, 48.98]3 studies · 1003 participantsUngraded
Summary of findings 3: Efficacy and safety of IVT pegcetacoplan 4‐weekly (monthly) vs sham
Safety: Development of endophthalmitis at 1 year · adults with GA due to AMD
Complement inhibitors for age‐related macular degeneration (2023) · Cochrane
RR 3.79 [0.42, 34.05]3 studies · 1003 participantsModerate
Summary of findings 3: Efficacy and safety of IVT pegcetacoplan 4‐weekly (monthly) vs sham
Loss of ≥ 15 letters BCVA at 1 year · adults with GA due to AMD
Complement inhibitors for age‐related macular degeneration (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings 1: Efficacy and safety of IVT lampalizumab 4‐weekly (monthly) vs sham
Change in untransformed GA lesion size from baseline at 1 year (mm²) · adults with GA due to AMD
Complement inhibitors for age‐related macular degeneration (2023) · Cochrane
no estimate extracted3 studies · 1199 participantsModerate
Summary of findings 3: Efficacy and safety of IVT pegcetacoplan 4‐weekly (monthly) vs sham
Change in LLVA from baseline at 1 year (ETDRS letters) · adults with GA due to AMD
Complement inhibitors for age‐related macular degeneration (2023) · Cochrane
no estimate extracted1 study · 164 participantsModerate
Summary of findings 3: Efficacy and safety of IVT pegcetacoplan 4‐weekly (monthly) vs sham
Change in quality of life at 1 year (NEI VFQ‐25 composite score) · adults with GA due to AMD
Complement inhibitors for age‐related macular degeneration (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings 4: Efficacy and safety of IVT pegcetacoplan 8‐weekly (every other month) vs sham
Change in BCVA from baseline at 1 year (ETDRS letters) · adults with GA due to AMD
Complement inhibitors for age‐related macular degeneration (2023) · Cochrane
no estimate extracted1 study · 158 participantsModerate
Summary of findings 4: Efficacy and safety of IVT pegcetacoplan 8‐weekly (every other month) vs sham
Change in untransformed GA lesion size from baseline at 1 year (mm²) · adults with GA due to AMD
Complement inhibitors for age‐related macular degeneration (2023) · Cochrane
no estimate extracted3 studies · 963 participantsHigh
Summary of findings 4: Efficacy and safety of IVT pegcetacoplan 8‐weekly (every other month) vs sham
Safety: Development of macular neovascularisation or exudative AMD at 1 year · adults with GA due to AMD
Complement inhibitors for age‐related macular degeneration (2023) · Cochrane
RR 2.29 [0.46, 11.35]3 studies · 997 participantsUngraded
Summary of findings 4: Efficacy and safety of IVT pegcetacoplan 8‐weekly (every other month) vs sham
Safety: Development of endophthalmitis at 1 year · adults with GA due to AMD
Complement inhibitors for age‐related macular degeneration (2023) · Cochrane
RR 4.77 [0.55, 41.68]3 studies · 997 participantsModerate
Summary of findings 4: Efficacy and safety of IVT pegcetacoplan 8‐weekly (every other month) vs sham
Loss of ≥ 15 letters BCVA at 1 year · adults with GA due to AMD
Complement inhibitors for age‐related macular degeneration (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings 4: Efficacy and safety of IVT pegcetacoplan 8‐weekly (every other month) vs sham
Change in LLVA from baseline at 1 year (ETDRS letters) · adults with GA due to AMD
Complement inhibitors for age‐related macular degeneration (2023) · Cochrane
no estimate extracted1 study · 158 participantsModerate
Summary of findings 4: Efficacy and safety of IVT pegcetacoplan 8‐weekly (every other month) vs sham
Change in quality of life at 1 year (NEI VFQ‐25 composite score) · adults with GA due to AMD
Complement inhibitors for age‐related macular degeneration (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings 1: Efficacy and safety of IVT lampalizumab 4‐weekly (monthly) vs sham
Safety: Development of macular neovascularisation or exudative AMD at 1 year · adults with GA due to AMD
Complement inhibitors for age‐related macular degeneration (2023) · Cochrane
RR 1.77 [0.73, 4.3]3 studies · 1330 participantsLow
Summary of findings 1: Efficacy and safety of IVT lampalizumab 4‐weekly (monthly) vs sham
Safety: Development of endophthalmitis at 1 year · adults with GA due to AMD
Complement inhibitors for age‐related macular degeneration (2023) · Cochrane
RR 6.92 [0.36, 133.73]3 studies · 1330 participantsModerate
Summary of findings 1: Efficacy and safety of IVT lampalizumab 4‐weekly (monthly) vs sham
Loss of ≥ 15 letters BCVA at 1 year · adults with GA due to AMD
Complement inhibitors for age‐related macular degeneration (2023) · Cochrane
RR 0.86 [0.63, 1.18]2 studies · 1103 participantsModerate
Summary of findings 1: Efficacy and safety of IVT lampalizumab 4‐weekly (monthly) vs sham
Change in LLVA from baseline at 1 year (ETDRS letters) · adults with GA due to AMD
Complement inhibitors for age‐related macular degeneration (2023) · Cochrane
no estimate extracted2 studies · 1068 participantsHigh
Summary of findings 1: Efficacy and safety of IVT lampalizumab 4‐weekly (monthly) vs sham
Change in quality of life at 1 year (NEI VFQ‐25 composite score) · adults with GA due to AMD
Complement inhibitors for age‐related macular degeneration (2023) · Cochrane
no estimate extracted2 studies · 983 participantsHigh