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Table 5 Variance in total domain scores explained by visual acuity (better eye), demographic variables, binocular status, and difference in acuity between eyes

From: Is the NEI-VFQ-25 a useful tool in identifying visual impairment in an elderly population?

Exposure R2 for VFQ Total score
Visual acuity 0.16
Age, gender, practice 0.08
Visual acuity, age, gender, practice 0.20
Visual acuity, age, gender, practice, binocular status 0.25
Visual acuity, age, gender, practice, binocular status, difference in acuity between eyes 0.27