Table 3Grading of evidence for KQ 1a

Number of Studies; ParticipantsRisk of BiasConsistencyDirectnessPrecisionStrength of Evidence
Visual Impairment/Visual Acuity
11; 918RCT/MediumInconsistentDirectImpreciseInsufficient

From: Results

Cover of Treatment for Glaucoma: Comparative Effectiveness
Treatment for Glaucoma: Comparative Effectiveness [Internet].
Comparative Effectiveness Reviews, No. 60.
Boland MV, Ervin AM, Friedman D, et al.

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