Table 5.

Characteristics of treated eyes: related to the preoperative diagnosis

Group	NVG*	Failed filter	Secondary glaucoma	Aphakic/pseudophakic glaucoma	Total
Age (average, year)	56.1	46.1	37.0	49.8	49.8
No of previous surgery (average)	0.3	3.6	0.9	2.0	1.3
Intraocular pressure (mm Hg), mean (SD)
Preoperative	49.3 (13.5)	35.6 (14.5)	41.7 (12.3)	31.3 (11.9)	42.5 (14.6)
At last visit	19.3 (13.2)	15.3 (5.8)	15.1 (9.1)	16.5 (4.2)	17.3 (10.2)
No of antiglaucoma medications, mean (SD)
Preoperative	2.4 (0.6)	2.3 (0.5)	1.7 (0.5)	2.0 (0.6)	2.2 (0.6)
At last visit	0.5 (0.7)	0.5 (0.8)	0.3 (0.5)	1.0 (1.3)	0.5 (0.8)
Result, eyes (%)
Success	12 (63.2)	6 (75.0)	3 (42.9)	5 (83.3)	26 (65.0)
Failure	7 (36.8)	2 (25.0)	4 (57.1)	1 (16.7)	14 (35.0)
No of subjects	19	8	7	6	40

^*Neovascular glaucoma.