Table 2

Reliability for each subscale

No of itemsCronbach's ╬▒lphaICC
n=209n=173
J-OSDI total score120.8840.910
Ocular symptoms50.7880.649
Vision-related function40.6690.817
Environmental triggers30.9020.859
  • ICC, intraclass correlation coefficient; J-OSDI, Japanese version of the Ocular Surface Disease Index.