Table 2

Comparison on the 40-item Glaucoma Visual Functioning Questionnaire (GVFQ-40) scores between the glaucoma group and control group

GVFQ-40
(Score 1–5)
Glaucoma group
(n=270)*
Control group
(n=84)*
P value†
Mobility1.25 (1.00–2.13)1.00 (1.00–1.00)<0.001
Visual motor skills1.38 (1.13–2.50)1.00 (1.00–1.00)<0.001
Reading1.50 (1.13–2.50)1.00 (1.00–1.13)<0.001
Recognition1.38 (1.13–2.25)1.00 (1.00–1.25)<0.001
Night vision1.88 (1.25–3.00)1.00 (1.00–1.31)<0.001
Total score1.55 (1.18–2.33)1.04 (1.00–1.15)<0.001
  • *Data are presented as medians (IQR). A higher score means worse visual ability.

  • †Wilcoxon rank sum test.