TABLE 1.

Selection criteria

Item	Criteria for inclusion
Clinical practice guideline	Institute of Medicine definition: “statements that include recommendations, intended to optimise patient care, that are informed by a systematic review of evidence and an assessment of the benefits and harms of alternative care options” 12
Type of participants	People with refractive error including myopia, hyperopia, astigmatism, presbyopia and anisometropia. There were no restrictions on the population considered: all ages and all locations.
Type of intervention	All interventions for refractive error, including interventions related to the identification of refractive error, for example, vision screening.
Date of publication	From 2010 onwards
Conflict of interest	No commercial funding and no unmanaged conflicts of interest; affiliations of all authors available.
Recommendations	Information available on the strength of the recommendations
Quality	AGREE II: average score of 3 for items 4, 7, 12, 22 and the overall average score for each of nine items of 4, 7, 8, 10, 12, 13, 15, 22, 23 was 45 or more

AGREE II: Appraisal of Guidelines for Research and Evaluation II.