Cochrane · systematic review · CD010015

Omega 3 fatty acids for preventing or slowing the progression of age‐related macular degeneration

Lawrenson, JG, Evans, JR · Cochrane Database of Systematic Reviews · 2015 · Cochrane Library

Eyes and VisionAMSTAR 2: not assessed
SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.
Questions
6
current version
GRADE rated
6
No studies
0
Included studies
NR
No studies 0 · 0%Ungraded 0 · 0%Very low 0 · 0%Low 0 · 0%Moderate 4 · 66.7%High 2 · 33.3%

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.

Questions and results

Omega 3 fatty acids compared to placebo for slowing the progression of age‐related macular degeneration

Population: people with AMD
6 questions
OutcomeEffectEvidenceStatus / GRADE
Loss of 3 or more lines of VA at 24 months
Omega 3 fatty acids vs placebo
RR 1.141 study · 236 participantsModerate
Downgraded: imprecision
Loss of 3 or more lines of VA at 36 months
Omega 3 fatty acids vs placebo
RR 1.251 study · 230 participantsModerate
Downgraded: imprecision
Incidence of CNV at 24 months
Omega 3 fatty acids vs placebo
RR 1.061 study · 224 participantsModerate
Downgraded: imprecision
Incidence of CNV at 36 months
Omega 3 fatty acids vs placebo
RR 1.121 study · 195 participantsModerate
Downgraded: imprecision
Progression of AMD over 5 years
Omega 3 fatty acids vs placebo
HR 0.96 [0.84, 1.1]2 studies · 2343 participantsHigh
Adverse effects
Omega 3 fatty acids vs placebo
RR 1.012 studies · 2343 participantsHigh