Skip to main content

Table 2 The extent of concordance between the APCT and VR for measurement of the strabismic angle

From: To measure the amount of ocular deviation in strabismus patients with an eye-tracking virtual reality headset

  VR-APCT (PD)a P value ICC (95%CI) 95% Limits of agreement (PD)
Total (n = 38) 0.88 ± 5.77 0.352 0.897 (0.810–0.945) 11.32
Subgroup analysis 1
 XT (n = 16) −3.01 ± 5.75 < 0.001b 0.862 (0.651–0.950) 11.27
 ET (n = 18) 4.65 ± 3.38 0.962 (0.902–0.986) 6.62
Subgroup analysis 2
 Comitant (n = 21) 1.16 ± 6.32 0.746 0.864 (0.695–0.943) 12.39
 Incomitant (n = 17) 0.54 ± 5.19 0.890 (0.724–0.959) 10.17
  1. VR virtual reality, APCT alternative prism cover test, ICC intra-class correlation coefficient, XT exotropia, ET esotropia, PD prism diopter
  2. aData are mean ± standard deviation
  3. bStatistically significant by the independent Samples t test among XT and ET subgroups