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Study Groups
| Study Group | Duration of crosslinking of anterior corneal surface (minutes) | Duration of crosslinking of posterior corneal surface (minutes) |
|---|---|---|
| A7.5 | 7.5 | - |
| A15 | 15 | - |
| A30 | 30 | - |
| A60 | 60 | - |
| A90 | 90 | - |
| A15P15 | 15 | 15 |
| A30P30 | 30 | 30 |
| γ | 0 | 0 |
| γ+A30 | 30 | 0 |
γ = gamma irradiation, A = Anterior corneal surface, P = Posterior corneal surface
