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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
Summary of findings: intravitreal bevacizumab plus intravitreal steroid vs macular laser
Systemic adverse events at · adults with centre‐involving diabetic macular oedema
Anti‐vascular endothelial growth factor combined with intravitreal steroids for diabetic macular oedema (2018) · Cochrane
no estimate extractedNRNo studies
Summary of findings: intravitreal bevacizumab plus intravitreal steroid vs macular laser
Quality of life at · adults with centre‐involving diabetic macular oedema
Anti‐vascular endothelial growth factor combined with intravitreal steroids for diabetic macular oedema (2018) · Cochrane
no estimate extractedNRNo studies
Summary of findings: intravitreal bevacizumab plus intravitreal steroid vs intravitreal steroid
Mean change in visual acuity at 1 year (number of letters read on logMAR chart) · adults with centre‐involving diabetic macular oedema
Anti‐vascular endothelial growth factor combined with intravitreal steroids for diabetic macular oedema (2018) · Cochrane
no estimate extractedNRLow
Summary of findings: intravitreal bevacizumab plus intravitreal steroid vs intravitreal steroid
Gain or loss of 10 or more letters visual acuity at 1 year · adults with centre‐involving diabetic macular oedema
Anti‐vascular endothelial growth factor combined with intravitreal steroids for diabetic macular oedema (2018) · Cochrane
no estimate extractedNRNo studies
Summary of findings: intravitreal bevacizumab plus intravitreal steroid vs intravitreal steroid
Mean change in central macular thickness at 1 year · adults with centre‐involving diabetic macular oedema
Anti‐vascular endothelial growth factor combined with intravitreal steroids for diabetic macular oedema (2018) · Cochrane
no estimate extractedNRLow
Summary of findings: intravitreal bevacizumab plus intravitreal steroid vs intravitreal steroid
Significant intraocular inflammation at · adults with centre‐involving diabetic macular oedema
Anti‐vascular endothelial growth factor combined with intravitreal steroids for diabetic macular oedema (2018) · Cochrane
no estimate extractedNRNo studies
Summary of findings: intravitreal anti‐VEGF plus intravitreal steroid vs intravitreal anti‐VEGF
Mean change in central macular thickness at 1 year · adults with centre‐involving diabetic macular oedema
Anti‐vascular endothelial growth factor combined with intravitreal steroids for diabetic macular oedema (2018) · Cochrane
no estimate extractedNRLow
Summary of findings: intravitreal bevacizumab plus intravitreal steroid vs intravitreal steroid
Development of cataract at · adults with centre‐involving diabetic macular oedema
Anti‐vascular endothelial growth factor combined with intravitreal steroids for diabetic macular oedema (2018) · Cochrane
no estimate extractedNRNo studies
Summary of findings: intravitreal bevacizumab plus intravitreal steroid vs intravitreal steroid
Raised intraocular pressure at 1 year at · adults with centre‐involving diabetic macular oedema
Anti‐vascular endothelial growth factor combined with intravitreal steroids for diabetic macular oedema (2018) · Cochrane
Peto OR 0.75 [0.16, 3.55]NRVery low
Summary of findings: intravitreal bevacizumab plus intravitreal steroid vs intravitreal steroid
Systemic adverse events at · adults with centre‐involving diabetic macular oedema
Anti‐vascular endothelial growth factor combined with intravitreal steroids for diabetic macular oedema (2018) · Cochrane
no estimate extractedNRNo studies
Summary of findings: intravitreal bevacizumab plus intravitreal steroid vs intravitreal steroid
Quality of life at · adults with centre‐involving diabetic macular oedema
Anti‐vascular endothelial growth factor combined with intravitreal steroids for diabetic macular oedema (2018) · Cochrane
no estimate extractedNRNo studies
Summary of findings: intravitreal anti‐VEGF plus intravitreal steroid vs intravitreal anti‐VEGF
Significant intraocular inflammation at · adults with centre‐involving diabetic macular oedema
Anti‐vascular endothelial growth factor combined with intravitreal steroids for diabetic macular oedema (2018) · Cochrane
Peto OR 0.53 [0.05, 5.08]NRVery low
Summary of findings: intravitreal anti‐VEGF plus intravitreal steroid vs intravitreal anti‐VEGF
Development of cataract at · adults with centre‐involving diabetic macular oedema
Anti‐vascular endothelial growth factor combined with intravitreal steroids for diabetic macular oedema (2018) · Cochrane
Peto OR 7.49 [2.87, 19.6]NRModerate
Summary of findings: intravitreal anti‐VEGF plus intravitreal steroid vs intravitreal anti‐VEGF
Raised intraocular pressure at · adults with centre‐involving diabetic macular oedema
Anti‐vascular endothelial growth factor combined with intravitreal steroids for diabetic macular oedema (2018) · Cochrane
Peto OR 8.13 [4.67, 14.16]NRModerate
Summary of findings: intravitreal anti‐VEGF plus intravitreal steroid vs intravitreal anti‐VEGF
Systemic adverse events at · adults with centre‐involving diabetic macular oedema
Anti‐vascular endothelial growth factor combined with intravitreal steroids for diabetic macular oedema (2018) · Cochrane
Peto OR 1.32 [0.61, 2.86]NRLow
Summary of findings: intravitreal anti‐VEGF plus intravitreal steroid vs intravitreal anti‐VEGF
Quality of life at · adults with centre‐involving diabetic macular oedema
Anti‐vascular endothelial growth factor combined with intravitreal steroids for diabetic macular oedema (2018) · Cochrane
no estimate extractedNRNo studies
Summary of findings: intravitreal bevacizumab plus intravitreal steroid vs macular laser
Mean change in visual acuity at 1 year (number of letters read on logMAR chart) · adults with centre‐involving diabetic macular oedema
Anti‐vascular endothelial growth factor combined with intravitreal steroids for diabetic macular oedema (2018) · Cochrane
no estimate extractedNRLow
Summary of findings: intravitreal bevacizumab plus intravitreal steroid vs macular laser
Gain or loss of 10 or more letters visual acuity at 1 year · adults with centre‐involving diabetic macular oedema
Anti‐vascular endothelial growth factor combined with intravitreal steroids for diabetic macular oedema (2018) · Cochrane
no estimate extractedNRNo studies
Blue‐light filtering intraocular lenses (IOL) vs non blue‐light filtering IOL
Change in distance BCVA, between baseline and 12 months · adults undergoing cataract surgery with IOL implantation
Blue‐light filtering intraocular lenses (IOLs) for protecting macular health (2018) · Cochrane
no estimate extracted2 studies · 131 participantsModerate
Blue‐light filtering intraocular lenses (IOL) vs non blue‐light filtering IOL
Distance BCVA, considered as a dichotomous outcome (being the proportion of eyes that experienced loss of 15 or more letters from baseline BCVA), at six months · adults undergoing cataract surgery with IOL implantation
Blue‐light filtering intraocular lenses (IOLs) for protecting macular health (2018) · Cochrane
no estimate extracted2 studies · 63 participantsVery low
Blue‐light filtering intraocular lenses (IOL) vs non blue‐light filtering IOL
Contrast sensitivity function, measured in log Contrast Sensitivity at six months · adults undergoing cataract surgery with IOL implantation
Blue‐light filtering intraocular lenses (IOLs) for protecting macular health (2018) · Cochrane
no estimate extractedNRNo studies
Blue‐light filtering intraocular lenses (IOL) vs non blue‐light filtering IOL
Colour discrimination, measured as the proportion of eyes that had a measurable loss from baseline using Farnsworth‐Munsell 100‐hue colour test score under photopic conditions at six months · adults undergoing cataract surgery with IOL implantation
Blue‐light filtering intraocular lenses (IOLs) for protecting macular health (2018) · Cochrane
no estimate extractedNRNo studies
Blue‐light filtering intraocular lenses (IOL) vs non blue‐light filtering IOL
Proportion of participants with adverse events with a probable causal link with the study interventions at six months · adults undergoing cataract surgery with IOL implantation
Blue‐light filtering intraocular lenses (IOLs) for protecting macular health (2018) · Cochrane
no estimate extractedNRNo studies
Blue‐light filtering intraocular lenses (IOL) vs non blue‐light filtering IOL
Proportion of eyes that developed late‐stage AMD, being CNV and/or GA, at three years of · adults undergoing cataract surgery with IOL implantation
Blue‐light filtering intraocular lenses (IOLs) for protecting macular health (2018) · Cochrane
no estimate extracted1 study · 50 participantsVery low
Blue‐light filtering intraocular lenses (IOL) vs non blue‐light filtering IOL
Proportion of eyes that developed any stage of AMD at 12 months · adults undergoing cataract surgery with IOL implantation
Blue‐light filtering intraocular lenses (IOLs) for protecting macular health (2018) · Cochrane
no estimate extracted2 studies · 144 participantsVery low
Any quality improvement intervention vs usual care
Proportion of participants attending screening (median · patients with type 1 or 2 diabetes eligible for diabetic retinopathy screening
Interventions to increase attendance for diabetic retinopathy screening (2018) · Cochrane
no estimate extracted56 studies · 329164 participantsLow
Any quality improvement intervention vs usual care
Ongoing adherence to screening · patients with type 1 or 2 diabetes eligible for diabetic retinopathy screening
Interventions to increase attendance for diabetic retinopathy screening (2018) · Cochrane
no estimate extractedNRNo studies
Any quality improvement intervention vs usual care
Economic Outcomes Resources used (staff time, equipment, consumables) · patients with type 1 or 2 diabetes eligible for diabetic retinopathy screening
Interventions to increase attendance for diabetic retinopathy screening (2018) · Cochrane
no estimate extracted13 studies · 85 participantsLow
Any quality improvement intervention vs usual care
Staff/personnel costs; costs of treatment and care; cost of primary care; lost wages and lost productivity · patients with type 1 or 2 diabetes eligible for diabetic retinopathy screening
Interventions to increase attendance for diabetic retinopathy screening (2018) · Cochrane
no estimate extracted10 studies · 85 participantsLow
Any quality improvement intervention vs usual care
Incremental Cost effectiveness of interventions · patients with type 1 or 2 diabetes eligible for diabetic retinopathy screening
Interventions to increase attendance for diabetic retinopathy screening (2018) · Cochrane
no estimate extracted3 studies · 85 participantsLow
Stepped quality improvement intervention vs intervention alone
Proportion of participants attending screening (median · patients with type 1 or 2 diabetes eligible for diabetic retinopathy screening
Interventions to increase attendance for diabetic retinopathy screening (2018) · Cochrane
no estimate extracted10 studies · 23715 participantsModerate
Stepped quality improvement intervention vs intervention alone
Ongoing adherence to screening · patients with type 1 or 2 diabetes eligible for diabetic retinopathy screening
Interventions to increase attendance for diabetic retinopathy screening (2018) · Cochrane
no estimate extractedNRNo studies
Stepped quality improvement intervention vs intervention alone
Economic outcomes · patients with type 1 or 2 diabetes eligible for diabetic retinopathy screening
Interventions to increase attendance for diabetic retinopathy screening (2018) · Cochrane
no estimate extractedNRNo studies
Descemet’s membrane endothelial keratoplasty (DMEK) vs Descemet’s stripping automated endothelial keratoplasty (DSAEK)
BCVA logMAR, 12 months' · participants/eyes with corneal endothelial failure
Descemet's membrane endothelial keratoplasty (DMEK) versus Descemet's stripping automated endothelial… (2018) · Cochrane
no estimate extractedNRLow
Descemet’s membrane endothelial keratoplasty (DMEK) vs Descemet’s stripping automated endothelial keratoplasty (DSAEK)
Severe visual loss (LogMAR BCVA of 1.0 or more) within 12 months' · participants/eyes with corneal endothelial failure
Descemet's membrane endothelial keratoplasty (DMEK) versus Descemet's stripping automated endothelial… (2018) · Cochrane
no estimate extractedNRVery low
Descemet’s membrane endothelial keratoplasty (DMEK) vs Descemet’s stripping automated endothelial keratoplasty (DSAEK)
Endothelial cell count cells/mm2, 12 months' · participants/eyes with corneal endothelial failure
Descemet's membrane endothelial keratoplasty (DMEK) versus Descemet's stripping automated endothelial… (2018) · Cochrane
no estimate extractedNRVery low
Descemet’s membrane endothelial keratoplasty (DMEK) vs Descemet’s stripping automated endothelial keratoplasty (DSAEK)
Corneal graft rejection any time pointa · participants/eyes with corneal endothelial failure
Descemet's membrane endothelial keratoplasty (DMEK) versus Descemet's stripping automated endothelial… (2018) · Cochrane
no estimate extractedNRVery low
Descemet’s membrane endothelial keratoplasty (DMEK) vs Descemet’s stripping automated endothelial keratoplasty (DSAEK)
Primary graft failure any time pointa · participants/eyes with corneal endothelial failure
Descemet's membrane endothelial keratoplasty (DMEK) versus Descemet's stripping automated endothelial… (2018) · Cochrane
no estimate extractedNRVery low
Descemet’s membrane endothelial keratoplasty (DMEK) vs Descemet’s stripping automated endothelial keratoplasty (DSAEK)
Corneal graft dislocation any time pointa · participants/eyes with corneal endothelial failure
Descemet's membrane endothelial keratoplasty (DMEK) versus Descemet's stripping automated endothelial… (2018) · Cochrane
RR 5.4 [1.51, 19.27]NRLow
Nd:YAG laser vs argon‐green laser
BCVA: loss of 15 or more ETDRS letters · people with proliferative diabetic retinopathy
Different lasers and techniques for proliferative diabetic retinopathy (2018) · Cochrane
RR 0.8 [0.3, 2.13]1 study · 20 participantsVery low
Diode laser vs argon laser
Progression of PDR · people with proliferative diabetic retinopathy
Different lasers and techniques for proliferative diabetic retinopathy (2018) · Cochrane
RR 0.9 [0.41, 2]1 study · 66 participantsVery low
Diode laser vs argon laser
Regression of PDR · people with proliferative diabetic retinopathy
Different lasers and techniques for proliferative diabetic retinopathy (2018) · Cochrane
RR 0.75 [0.35, 1.6]1 study · 66 participantsVery low
Diode laser vs argon laser
Pain during laser treatment · people with proliferative diabetic retinopathy
Different lasers and techniques for proliferative diabetic retinopathy (2018) · Cochrane
RR 3.07 [2.15, 4.39]4 studies · 228 participantsModerate
Diode laser vs argon laser
Vision‐related QoL ‐ not reported · people with proliferative diabetic retinopathy
Different lasers and techniques for proliferative diabetic retinopathy (2018) · Cochrane
no estimate extractedNRNo studies
Diode laser vs argon laser
Adverse events · people with proliferative diabetic retinopathy
Different lasers and techniques for proliferative diabetic retinopathy (2018) · Cochrane
RR 0.5 [0.05, 4.86]2 studies · 134 participantsVery low
0.5 vs 0.1 second exposure
BCVA: loss of 15 or more EDTRS letters ‐ 1 year · proliferative diabetic retinopathy
Different lasers and techniques for proliferative diabetic retinopathy (2018) · Cochrane
RR 0.421 study · 44 participantsLow
0.5 vs 0.1 second exposure
BCVA: gain of 15 or more EDTRS letters ‐ 1 year · proliferative diabetic retinopathy
Different lasers and techniques for proliferative diabetic retinopathy (2018) · Cochrane
RR 2.22 [0.68, 7.28]1 study · 44 participantsLow
0.5 vs 0.1 second exposure
Progression of PDR ‐ 1 year · proliferative diabetic retinopathy
Different lasers and techniques for proliferative diabetic retinopathy (2018) · Cochrane
RR 0.33 [0.02, 7.14]1 study · 16 participantsVery low
0.5 vs 0.1 second exposure
Regression of PDR ‐ 1 year · proliferative diabetic retinopathy
Different lasers and techniques for proliferative diabetic retinopathy (2018) · Cochrane
RR 1.17 [0.92, 1.48]1 study · 32 participantsLow
0.5 vs 0.1 second exposure
Pain during laser treatment ‐ not reported · proliferative diabetic retinopathy
Different lasers and techniques for proliferative diabetic retinopathy (2018) · Cochrane
no estimate extractedNRNo studies