| TFOS DEWS | The Tear Film & Ocular Surface Society Dry Eye Workshop II |
| DEQ-5 | 5-Item Dry Eye Questionnaire |
| ICC | Intraclass correlation coefficient |
| OSDI | Ocular Surface Disease Index |
| DED | Dry eye disease |
| TBUT | Tear break-up time |
| LUHS | Lithuanian University of Health Sciences |
| SPSS | Statistical Package for Social Sciences |
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