Research Article

Intravitreal Injections for Macular Edema Secondary to Retinal Vein Occlusion: Long-Term Functional and Anatomic Outcomes

Table 2

Mean BCVA and CMT and their changes at each annual time point for the whole population and for BRVO/CRVO subgroups (results are reported until the eighth year; subsequent FU is not included because of the small sample size).

Number of eyesBCVA logMar-mean (SD)BCVA improvement logMar-mean (SD) valueCMT μmmean (SD)CMT improvement μm-mean (SD) value

BaselineWhole population2230.79 (0.71)615.7 (257.5)
BRVO1240.60 (0.53)536.9 (212.5)
CRVO991.03 (0.84)714.4 (275.4)

1 yearWhole population2230.62 (0.68)0.16 (0.61)<0.0001401.04 (183.8)214.6 (269.6)<0.0001
BRVO1240.43 (0.51)0.17 (0.50)<0.0001355.2 (135.0)181.7 (211.5)<0.0001
CRVO990.88 (0.78)0.16 (0.72)0.0169458.5 (218.3)255.9 (324.7)<0.0001

2 yearsWhole population1890.63 (0.71)0.12 (0.68)0.009376.4 (171.2)229.0 (289.1)<0.0001
BRVO1140.40 (0.47)0.17 (0.51)0.0002348.7 (139.7)183.3 (243.5)<0.0001
CRVO750.99 (0.85)0.03 (0.87)0.3652418.1 (203.9)297.9 (336.9)<0.0001

3 yearsWhole population1470.65 (0.73)0.04 (0.70)0.2588367.1 (171.1)232.1 (288.6)<0.0001
BRVO940.47 (0.55)0.10 (0.60)0.0522337.9 (147.9)193.1 (236.6)<0.0001
CRVO530.96 (0.89)−0.07 (0.95)0.3089419.9 (197.4)302.6 (356.1)<0.0001

4 yearsWhole population1150.60 (0.75)0.06 (0.74)0.1761379.8 (196.2)215.9 (273.1)<0.0001
BRVO730.39 (0.48)0.16 (0.48)0.0029340.8 (158.6)181.7 (239.2)<0.0001
CRVO420.96 (0.97)−0.09 (1.04)0.2726449.0 (236.2)276.6 (319.1)<0.0001

5 yearsWhole population800.48 (0.62)0.14 (0.58)0.0183344.6 (156.4)241.5 (251.2)<0.0001
BRVO520.40 (0.63)0.08 (0.51)0.1338330.2 (154.3)170.8 (201.8)<0.0001
CRVO280.61 (0.59)0.25 (0.69)0.0341369.8 (159.5)365.8 (283.1)<0.0001

6 yearsWhole population610.46 (0.57)0.19 (0.59)0.0079332.8 (154.0)255.5 (255.9)<0.0001
BRVO410.32 (0.48)0.20 (0.48)0.0068313.2 (149.4)223.6 (227.1)<0.0001
CRVO200.76 (0.64)0.17 (0.78)0.1676374.1 (159.4)322.6 (303.6)0.0001

7 yearsWhole population390.57 (0.80)0.06 (0.78)0.3264306.9 (147.0)239.2 (271)<0.0001
BRVO280.31 (0.45)0.21 (0.49)0.0154298.5 (159.1)221.8 (241.3)<0.0001
CRVO111.23 (1.09)−0.34 (1.19)0.1824334.8 (98.9)297 (364.4)0.0201

8 yearsWhole population190.48 (0.71)0.2 (0.52)0.0562270.5 (155.0)305.1 (305.2)0.0001
BRVO160.30 (0.51)0.23 (0.56)0.0616267.2 (163.5)257.9 (246.2)0.0002
CRVO31.40 (0.98)0.03 (0.06)0.2113300.5 (0.71)729.5 (581.9)0.1635

Final visitWhole population2230.69 (0.80)0.11 (0.76)0.0175355.6 (171.9)260.1 (292.7)<0.0001
BRVO1240.42 (0.57)0.19 (0.60)0.0003316.0 (137.1)220.9 (246.6)<0.0001
CRVO991.02 (0.91)0.01 (0.91)0.4634405.1 (197.2)309.3 (336.8)<0.0001