Change in visual acuity (VA) for eyes with normal and abnormal (<1.1) preoperative N95:P50 ratios. Column percentages are shown
| VA | Abnormal N95:P50 | Normal N95:P50 | Total |
| Worse | 4 (26.67%) | 13 (22.81%) | 17 (23.61%) |
| No change | 2 (13.33%) | 21 (36.84%) | 23 (31.94%) |
| Improved | 9 (60.00%) | 23 (40.35%) | 32 (44.44%) |
| Total | 15 (100.00%) | 57 (100.00%) | 72 (100.00%) |
Fisher's exact test (p=0.224).