Table 6. Corneal staining scores in the two groups.
| Groups | 1st visit | 2nd visit | 3rd visit | P (Chi-square) | 1st to 3rd visit difference | P (Mann-Whitney) |
| Azitromycin | 1.24 | 1.09 | 0.9 | 0.004 | 0.34 | 0.022 |
| Doxycycline | 1.66 | 1.26 | 0.36 | <0.01 | 1.3 |
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