Fig. 1.

Slit lamp images of the three groups. A Complete success (C). FB appears well-elevated and extended on the ocular surface, with indistinct margins and with a multi-cystic feature in the juxta-limbal side; the bleb-wall is hypo-vascularized and transparent. B Qualified success (Q). FB appears well-elevated on the ocular surface, shows a circumscribed shape (probably encapsulated in part) with relatively defined margins, and has a normal vascularization; the bleb-wall color indirectly indicates the presence of a thick bleb-wall. C Failure (F). FB appears flat, with a dense, and irregularly hyper-vascularized bleb-wall, and with indistinct margins; the entire ocular surface is hyperemic, with eyelids showing signs of Meibomian gland dysfunction