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Comparison of the MIDs between anchors (MD and VA), for each quality of life measure (VAQ and NEI-VFQ) and method (cross-sectional [X-Sec], longitudinal [Long], and distributional [Dist]). MID, minimally important difference; MD, mean deviation; VA, visual acuity; VAQ, Visual Activities Questionnaire; NEI-VFQ, National Eye Institute-Visual Function Questionnaire.
