Comparative analysis of the development of collateral vessels in macular edema due to branch retinal vein occlusion following grid laser or ranibizumab treatment

Figures & data

Table 1 Visual outcomes in the two groups of eyes

	Initial BCVA ± SD	Final BCVA ± SD
RNB group	0.86±0.26 logMAR	0.38±0.18 logMAR
Laser group	0.82±0.25 logMAR	0.64±0.33 logMAR
P-value	P=0.83	P=0.002

Abbreviations: RNB, ranibizumab; BCVA, best-corrected visual acuity; SD, standard deviation; logMAR, logarithm of the minimum angle of resolution.

Table 2 Development and time of appearance of collaterals in the two groups of eyes

	Collaterals (n, %)	Time (months)
RNB group	14/21 (66.67%)	6.14±2.60
Laser group	16/22 (68.18%)	6.20±1.97
P-value	P=1.00	P=0.947

Abbreviation: RNB, ranibizumab.