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Table 6 Minimal important difference from baseline to week 54

From: Psychometric validation of the visual function questionnaire-25 in patients with diabetic macular edema

VFQ-25 Domain N SEM* 1/2 SD
1. General Health 197 NA 10.95
2. General Vision 197 NA 8.80
3. Ocular Pain 197 11.98 10.53
4. Near Activities 197 9.17 10.24
5. Distance Activities 197 10.19 11.07
6. Social Functioning 197 9.64 9.87
7. Mental Health 197 10.21 10.56
8. Role Difficulties 197 14.04 14.40
9. Dependency 197 10.21 12.49
10. Driving 118 8.79 9.44
11. Colour Vision 194 NA 10.22
12. Peripheral Vision 196 NA 12.12
VFQ-25 Composite 197 3.33 6.13
  1. * Standard deviation * √ (1- Cronbach's Alpha).