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Comparison of vision improvement within 1 and 6 months after treatment (cases, %).
| 1 month after treatment | 6 months | ||||||
|---|---|---|---|---|---|---|---|
| Groups | Eyes | Improved vision | Unchanged vision | Decreased vision | Improved vision | Unchanged vision | Decreased vision |
| Observation | 96 | 69 (71.9) | 20 (20.8) | 7 (7.3) | 82 (85.4) | 9 (9.4) | 5 (5.2) |
| Control | 96 | 50 (52.1) | 33 (34.4) | 13 (13.5) | 65 (67.7) | 21 (21.9) | 10 (10.4) |
| χ2 test | 8.022 | 8.433 | |||||
| P-value | 0.018 | 0.015 | |||||
