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Table 7 Results of factor analysis on 10 subscales of VFQ-25 ('General Health' and 'Driving' were excluded): factor loadings after promax rotation

From: Psychometric properties of the 25-item National Eye Institute Visual Function Questionnaire (NEI VFQ-25), Japanese version

Subscale Factor 1 Factor 2
Near vision 0.909 -0.118
Mental health 0.866 0.052
Role limitation 0.850 -0.043
Dependency 0.838 0.053
Distance vision 0.828 0.067
General vision 0.757 -0.095
Social functioning 0.724 0.072
Peripheral vision -0.033 0.701
Ocular pain -0.094 0.575
Color vision 0.243 0.421