(a)
(b)
(c)
Figure 1: (a)–(c) Representative bleb photographs: examples of the IBAGS grades. (a) The successful CLASS at 1M: H2 E2 V2 S0. (b) The failed CLASS at 3M: H0 E0 V3 S0. (c) The successful CLASS at 12M: H1 E2 V2 S0.