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Properties of the CLs used in the study (the manufacturer would not provide thickness data for positive CLs).
| Material | Etafilcon A |
|---|---|
| BOZR (mm) | 8.70 |
| TD (mm) | 14.0 |
| Fv’ | +2.00 and +6.00 |
| Modulus (MPa) | 0.26 |
| Dk/t (×10−9) | 40 |
| Water content (%) | 58 |
| Central thickness (−3.00 D) (mm) |
0.084 |
| FDA Group | IV |
