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Reliability for each subscale
| No of items | Cronbach's αlpha | ICC | |
| n=209 | n=173 | ||
| J-OSDI total score | 12 | 0.884 | 0.910 |
| Ocular symptoms | 5 | 0.788 | 0.649 |
| Vision-related function | 4 | 0.669 | 0.817 |
| Environmental triggers | 3 | 0.902 | 0.859 |
ICC, intraclass correlation coefficient; J-OSDI, Japanese version of the Ocular Surface Disease Index.
