participants had to have taken the National Eye Institute Visual Function Questionnaire 25 (NEI VFQ-25) at least for 2 years and had to have had standard automated perimetry at 6-month intervals.

Each participant filled out the questionnaire, which consists of 25 items plus an appendix, at two visits separated by 1 to 4 years. Changes in the NEI-VFQ overall and subscale scores of 10 points ...

and the traditional Visual Function Questionnaire (VFQ-25), from the National Eye Institute (NEI), show substantial improvements in health-related quality of life (HRQOL) for adult patients who ...