Table 4.

Postoperative complications

	NPDS	Ex-PRESS	TBC	Ahmed	Baerveldt	CPC
	n = 18	n = 8	n = 3	n = 13	n = 4	n = 13
Type of complication n (%)
Flat chamber	0	0	0	1 (7.7)	1 (25)	–
Seidel	0	0	0	1 (7.7)	1 (25)	–
Hyphema	2 (11.1)	0	0	0	0	–
Implant extrusion†	1 (5.6)	–	–	–	–	–
Tube extrusion	–	–	–	1 (7.7)	1 (25)	–
Corneal edema	0	0	0	2 (15.4)	1 (25)	0
Obstruction	0	0	–	1 (7.7)	0	–
Phthisis bulbi	0	0	0	–	–	1 (7.7)

CPC, cyclophotocoagulation; NPDS, non-penetrating deep sclerectomy; TBC, trabeculectomy; 5-FU, 5-fluorouracil

^†Applies only to NPDS