Parameters Study Group (n = 22) Control Group (n = 14) P *
Height 0.9 ± 0.8 1.6 ± 0.6 0.64
Horizontal extent 1.2 ± 0.6 1.9 ± 0.8 0.73
Vascularity 0.7 ± 0.6 2.1 ± 0.8 0.01
Leakage 0 0  
*Significant at P <0.05
Table 3: Bleb morphologic characteristics (according to the Indiana Bleb Appearance Grading Scale) of complete success for the study and control groups.