Group 1 | Group 2 | Group 3 | p value | |
---|---|---|---|---|
CMO resolution (n = 8) | CMO reduction (n = 14) | CM persistence (n = 5) | ||
CMO = cystoid macular oedema; BVO = branch retinal vein occlusion; VA = visual acuity; MPS DA = Macular Photocoagulation Study disc area; PVD = posterior vitreous detachment. | ||||
Demographic data: | ||||
Patient age (years) | ||||
Median (Q1, Q3) | 60.8 (54.7, 68.5) | 67.0 (61.7, 72.5) | 61.5 (57.3, 77.7) | 0.56 |
Preoperative data: | ||||
BVO duration (months) | ||||
Median (Q1, Q3) | 7.0 (3.7, 12.0) | 7.5 (5.5, 11.0) | 4.5 (3.5, 6.6) | 0.44 |
VA (log MAR) | ||||
Median (Q1, Q3) | 1.0 (0.9, 1.1) | 1.0 (0.9, 1.2) | 1.3 (1.0, 1.6) | 0.47 |
Phakic eyes | ||||
Number (%) | 7.0 (87.5) | 6.0 (50.0) | 3.0 (60.0) | 0.15 |
BVO size (MPS DA) | ||||
Median (Q1, Q3) | 16.0 (10.5, 16.0) | 12.0 (12.0, 16.0) | 12.0 (9.0, 16.0) | 0.80 |
Non-perfused BVO | ||||
Number (%) | 4.0 (50.0) | 7.0 (50.0) | 3.0 (60.0) | 1.00 |
Intraoperative data: | ||||
Creation of PVD | ||||
Number (%) | 6.0 (75.0) | 9.0 (64.3) | 4.0 (80.0) | 1.00 |
Reperfusion of vein | ||||
Number (%) | 3.0 (37.5) | 3.0 (21.4) | 1.0 (20.0) | 0.84 |
Retinal break identified | ||||
Number (%) | 1.0 (12.5) | 3.0 (21.4) | 1.0 (20.0) | 0.87 |
Postoperative data: | ||||
Follow up (months) | ||||
Median (Q1, Q3) | 11.7 (10.0, 14.0) | 12.0 (7.5, 14.0) | 12.0 (12.0, 22.5) | 0.25 |
VA (log MAR) | ||||
Median (Q1, Q3) | 0.6 (0.2, 0.7) | 1.0 (0.5, 1.3) | 2.0 (1.0, 2.0) | 0.01 |
Improved VA | ||||
Number (%) | 7.0 (87.5) | 5.0 (35.7) | 1.0 (20.0) | 0.03 |
Retinal perfusion | ||||
Number (%) | 5.0 (83.0) | 3.0 (21.4) | 2.0 (40.0) | 0.16 |
Cataract surgery | ||||
Number (%) | 2.0 (25.0) | 0.0 (0.0) | 2.0 (40.0) | 0.05 |