Table 4

Measures of repeatability of day-to-day Goldmann intraocular pressure values (30 second treated eyes)

Pre-treatment (V1–3)Post-treatment (V5–7)
SwCV (95% CI)CR (95% CI)SwCV (95% CI)CR (95% CI)
8:002.039.1% (7.4 to 10.8)5.6 (4.7 to 6.6)1.7610.8% (8.8 to 12.8)4.9 (4.0 to 5.8)
11:002.019.3% (7.4 to 11.1)5.6 (4.6 to 6.5)1.8712.7% (10.3 to 15.1)5.2 (4.3 to 6.1)
16:002.3411.9% (9.7 to 14.2)6.5 (5.3 to 7.6)1.7612.2% (9.9 to 14.5)4.9 (4.0 to 5.8)
Diurnal*1.547.1% (5.8 to 8.5)4.3 (3.5 to 5.0)1.429.2% (7.5 to 11.0)3.9 (3.2 to 4.6)
  • * Mean of results for the 3 time points.

  • CR, coefficient of repeatability; CV, coefficient of variation; Sw, within-subject (test-retest) SD, standard deviation; ICC, intraclass correlation coefficient; V1–3, visits 1, 2 and 3 compared; V4–6, visits 4, 5 and 6 compared.