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Proportion of individuals with a ≥ 5 point change in vision-specific health related quality of life (HRQoL) composite score (CS) across decreasing levels of change in visual field (mean deviation in decibel). Vision-specific HRQoL was measured using the National Eye Institute Visual Function Questionnaire-25 CS. A five-point change in vision-specific HRQoL was considered a minimal clinically important difference.
