Table 3.

Early and late complications after trabeculectomy and viscocanalostomy

	Trabeculectomy	Viscocanalostomy
Early complications
Transient bleb leak	5 (20%)	0
Transient hyphaemia	7 (28%)	2 (9%)
Transient anterior chamber shallowing	5 (20%)	1 (4%)
Injected blebs	3 (12%)	4 (17%)
Encysted blebs	4 (16%)	3 (13%)
Transient overlarge blebs	2 (8%)	3 (13%)
IOP spike	0	1 (4%)
Peripheral anterior synechiae	1 (4%)	1 (4%)
Posterior synechiae	3 (12%)	0
Late complications
Cystic area within blebs	8 (32%)	1 (4%)
Overlarge/overhanging blebs	0	0
Hypotony (IOP <8 mm Hg)	0	0
Late bleb leak	1 (4%)	0
Cataract	5 (20%)	0