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Fig. 1 | Health and Quality of Life Outcomes

Fig. 1

From: Validation and cross-cultural adaptation of the National Eye Institute Visual Function Questionnaire (NEI VFQ-25) in Serbian patients

Fig. 1

Person-item map of the NEI VFQ-25. The participants are on the left of the dashed line, with more able participants located at the top of the map. Items are located on the right of the dashed line, with more difficult items located at the top of the map. (M = mean; S = 1 SD from the mean; T = 2 SD from the mean)

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