| Demographic data | |
| Age, mean ± SD 65.08 ± 9.42 years (range: 50 - 79 years) | |
| Female : male | 1.65:1 |
| Dry Eye Severity, n |
|
| -Mild | n 33 |
| -Moderate | n 17 |
| Hypertension | n 11 |
| Cardiovascular disease | n 13 |
| Diabetes | n 9 |
| Osteoarthritis | n 14 |
| Smoking history | n 8 |
| Cholesterol > 260 mg/dL, | n 21 |