| BEB | benign essential blepharospasm |
| CCh | conjunctivochalasis |
| DE | dry eye |
| DEQS | dry eye-related quality-of-life score |
| DTC | delayed tear clearance |
| FBUT | fluorescein breakup time |
| FRD | friction-related disease |
| ITF | instability of tear film |
| IF | increased friction |
| MGD | meibomian gland dysfunction |
| QOL | quality of life |
| VAS | visual analog scale |
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