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Abnormal values of the tear breakup time and Schirmer I test in each country.
| Location | Tear Breakup Time (Seconds) | Schirmer I Test (mm) |
|---|---|---|
| USA | Not determined | Not determined |
| Germany | Abnormal < 10 Severe abnormal < 5 |
Abnormal < 10 Severe abnormal < 5 |
| France | ≤5 | ≤5 |
| Italy | ≤7 | ≤5 |
| Japan | ≤5 | ≤5 |
| China | 5 < Dry eye disease suspected ≤ 10 Dry eye ≤ 5 |
5 < Dry eye disease suspected ≤ 10 Dry eye ≤ 5 |
| South Korea | 5 < Dry eye suspected ≤ 10 Dry eye ≤ 5 |
5 < Dry eye suspected ≤ 10 Dry eye ≤ 5 |
