Table S1.
Newly designed Dry Eye Symptom Questionnaire
| Three-part questionnaire |
|---|
| A Symptom frequency and severity scores for dryness |
| 1) Do you feel dryness in your eyes? |
| 2) Are your eyes uncomfortable? |
| 3) Do you experience a foreign body sensation in your eyes? |
| 4) Do you have any pain in your eyes? |
| 5) Do you feel any eyestrain? |
| 6) Do you have any discomfort in your eyes? |
| 7) Are your eyes bloodshot? |
| 8) Do you have any itching in your eyes? |
| 9) Do you have any difficulty opening your eyes? |
| 10) Do you have any irritation in your eyes? |
| 11) Do your eyes feel heavy? |
| 12) If you have any other symptoms, please write it in the parentheses beneath and circle the frequency |
| Total (1–12): () – A |
| B Symptom frequency severity scores for visual disturbance |
| 13) Do you have hazy vision? |
| 14) Do you have any glare? |
| 15) While reading, do your dry eye symptoms worsen, and it becomes hard to continue reading? |
| 16) While driving, do your dry eye symptoms worsen, and it becomes difficult to drive? |
| 17) While operating the computer, do your dry eye symptoms worsen, and it becomes difficult to continue? |
| 18) While watching TV or movies, do your dry eye symptoms worsen, and it becomes difficult to watch? |
| 19) Do you have any after-images? |
| 20) Do you think that blinking affects your sight? |
| 21) Can you keep your eyes open without blinking for 10 seconds or more? |
| Total (13–21): () – B |
| C Symptom frequency severity scores for environmental and lifestyle factors: Do your dry eye symptoms worsen? |
| 22) When the wind is strong? |
| 23) When it is dry in winter or summer? |
| 24) When the air conditioning is on? |
| 25) While flying? |
| 26) When you feel stressed in daily life? |
| 27) After alcohol consumption? |
| 28) When you smoke or are exposed to someone smoking next to you? |
| 29) When you are wearing contact lenses? |
| Total (22–29): () – C |
Notes: Of the 29 questions, 1 through 29, except for 21, were classified into the following five stages: 4, always; 3, often; 2, occasionally; 1, rarely; and 0, never. Question 21 was classified into the following five stages: 4, not possible; 3, with difficulty; 2, moderately possible; 1, probable; and 0, not a problem.