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The amount of CS determined in the donor part of the Franz cell and in the porcine cornea after 5 min and 3 h corneal exposure to eye drops (CS 20.4 mg/mL, HA 0.4%) (mean ± SD, n = 3).
| Solution | Time | Donor Chamber | Porcine Cornea | ||
|---|---|---|---|---|---|
| mg | % | mg | % | ||
| CS (20.4 mg/mL) with HA (0.4%) | 5 min | 17.29 ± 0.25 | 84.8 ± 1.2 | 1.60 ± 0.04 | 7.8 ± 0.2 |
| 3 h | 16.67 ± 0.01 | 81.7 ± 0.1 | 3.74 ± 0.05 | 18.3 ± 0.2 | |
