Table 2.
IS/OS defect, BCVA and RS Outcomes of 3 Groups Before and After Surgery
| Outcomes Parameter | Before surgery | 1 month after surgery | 3 months after surgery | 9 months after surgery | |||
|---|---|---|---|---|---|---|---|
| Mean ± SD | Mean ± SD | t, p Value* | Mean ± SD | t, p Value* | Mean ± SD | t, p Value* | |
| Group1 (17 eyes) | |||||||
| IS/OS defect (μm) | 986.16 ± 823.47 | 593.08 ± 697.79 | 5.02, < 0.0001 | 415.23 ± 561.58 | 5.25, < 0.0001 | 318.34 ± 481.72 | 5.08, < 0.0001 |
| BCVA (logMAR) | 0.71 ± 0.33 | 0.49 ± 0.25 | 4.41, 0.0004 | 0.45 ± 0.25 | 5.47, < 0.0001 | 0.43 ± 0.24 | 5.76, < 0.0001 |
| RS (dB) | 16.27 ± 1.17 | 17.23 ± 1.09 | 8.35, < 0.0001 | 17.47 ± 1.12 | 8.68, < 0.0001 | 17.62 ± 1.17 | 8.95, < 0.0001 |
| Group2 (12 eyes) | |||||||
| IS/OS defect (μm) | 2225.49 ± 758.38 | 1484.31 ± 423.94 | 5.99, < 0.0001 | 1097.06 ± 450.65 | 9.56, < 0.0001 | 811.76 ± 465.70 | 10.83, < 0.0001 |
| BCVA (LogMAR) | 0.97 ± 0.21 | 0.85 ± 0.16 | 2.36, 0.38 | 0.77 ± 0.23 | 5.87, 0.0001 | 0.71 ± 0.19 | 5.33, 0.0002 |
| RS (dB) | 13.78 ± 2.67 | 15.08 ± 2.32 | 5.95, < 0.0001 | 15.42 ± 2.19 | 6.17, < 0.0001 | 15.51 ± 2.27 | 6.34, < 0.0001 |
| Group3 (14 eyes) | |||||||
| IS/OS defect (μm) | 4689.08 ± 978.69 | 3257.98 ± 892.75 | 4.64, 0.0005 | 2671.43 ± 985.54 | 6.15, < 0.0001 | 2357.98 ± 924.54 | 7.07, < 0.0001 |
| BCVA (LogMAR) | 1.65 ± 0.44 | 1.29 ± 0.39 | 2.75, 0. 17 | 1.05 ± 0.23 | 5.10, 0.0002 | 0.91 ± 0.20 | 6.57, < 0.0001 |
| RS (dB) | 9.07 ± 2.07 | 11.59 ± 2.45 | 3.96, 0.002 | 12.46 ± 2.45 | 5.21, 0.0002 | 12.69 ± 2.46 | 5.47, 0.0001 |
BCVA best-corrected visual acuity, IS/OS photoreceptor inner segment and outer segment, logMAR logarithm of minimal angle of resolution, RS retinal sensitivity. *Student paired t-test; p value represents the difference between after and before surgery. P < 0.05 was considered statistically significant