Table 3.
Comparison of dry eye Questionnaire-5 (DEQ-5) pre/post botulinum toxin a injection.
| Patient 1 | Patient 2 | Patient 3 | Patient 4 | ||
|---|---|---|---|---|---|
| Q1a. During a typical day in the past month, how often did your eyes feel discomfort? | Pre | 4 | 4 | 3 | 4 |
| Post | 2 | 1 | 2 | 1 | |
| Q1b. When your eyes felt discomfort, how intense was this feeling of discomfort at the end of the day, within 2 h of going to bed? | Pre | 5 | 5 | 4 | 4 |
| Post | 3 | 2 | 3 | 1 | |
| Q2a. During a typical day in the past month, how often did your eyes feel dry? | Pre | 2 | 4 | 3 | 4 |
| Post | 2 | 2 | 2 | 1 | |
| Q2b. When your eyes felt dry, how intense was this feeling of dryness at the end of the day, within 2 h of going to bed? | Pre | 3 | 5 | 3 | 5 |
| Post | 1 | 2 | 3 | 1 | |
| Q3a. During a typical day in the past month, how often did your eyes look or feel excessively watery? | Pre | 1 | 1 | 0 | 0 |
| Post | 0 | 1 | 1 | 1 | |
| Total DEQ-5 (scale 0–22) | Pre | 15 | 19 | 13 | 17 |
| Post | 8 | 8 | 11 | 5 | |
All “a” questions were answered as 0 (never), 1 (rarely), 2 (sometimes), 3 (frequently), or 4 (constantly). All “b” questions were answered from 0 to 5 with 0 as “never have it”, 1 as “not at all intense”, and 5 as “very intense”.