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Mean and median DS before surgery, 6 months after surgery, and at follow up for subjects with and without an ocular co-morbidity
| Before surgery | After 6 months | At follow up | ||
| No ocular co-morbidity (n = 275) | Mean | 12.25 | 7.73 | 7.68 |
| Median | 12.00 | 7.00 | 7.00 | |
| Ocular co-morbidity (n = 170) | Mean | 14.36 | 10.59 | 11.39 |
| Median | 14.00 | 9.00 | 9.00 | |
