Table 3.
Clinical Features of Dysfunctional Tear Syndrome Patients Stratified by Severity
| Severity Level | N | % Female | Mean Age ±SD | Symptom Severity Score | Schirmer 1 score (mm) | Corneal Staining score | Conj LG Staining |
|---|---|---|---|---|---|---|---|
| 1 | 5 | 80 | 60±13.4 | 36.8± 8.4 | 16.6 ± 5.2 | 0.9 ± 2.0 | 0± 0.0 |
| 2 | 11 | 64 | 57.4±15.7 | 32.3±8.9 | 16.3±8.0 | 3.6±4.1 | 1±0.9 |
| 3 | 13 | 77 | 49.8±17.2 | 42.9±11.7 P< 0.05 ¶ |
12.8±10.9 | 7.1±3.6 P < 0.01¥ |
3.7±2.2 P < 0.001¥¶ |
| 4 | 1 | 100 | 78 | 23.0 | 0.00 | 13.5 | 6.0 |
The mean score of both eyes was used for the Schirmer 1 test, corneal fluorescein staining and conjunctival lissamine green (LG) staining scores; SD = standard deviation; Conj = conjunctiva
*
vs normal control,
¥
vs Level 1;
¶
vs Level 2