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Thickness Ranges for Controls and Tear Sample in this Study
| Sample | Thickness range (nm) |
|---|---|
| H20 with no surface layer (control) | 0-.1 |
| Monolayer of oleic acid on water (control) | 1.1- 1.6 |
| Monolayer of DPPC on water (control) | 2.6- 2.8 |
| Tears stored lots of 30 normal individuals | 0-197 |
| Tears (fresh, 4 normal individuals ) | 0-500 |
| Tears (fresh 1 normal individual, 7 repeat measurements from same ROI) | 0-110 |
| Tears (fresh from individual with dry eye) | 0-60 |
