Biodegradable 3D-Porous Collagen Matrix (Ologen) Compared with Mitomycin C for Treatment of Primary Open-Angle Glaucoma: Results at 5 Years

Table 1

Preoperative characteristics of patients in both groups.

Parameter	Ologen group	MMC group
	Age
Mean	55.73 ± 9.074	54.94 ± 10.525	0.522^a
Range	33~75	31~69
Gender
Male/female	18/13	17/15	0.444^b
Eye
Right/left	13/18	15/17	0.444^b
Mean preoperative IOP	43.07 ± 6.23	41.41 ± 5.11	0.507^a
Mean follow-up
Median	59.48 ± 2.74	58.81 ± 2.52	0.315^a
Range	55~65	56~64

Independent Student’s -test. ^b test or Fisher’s exact test, as needed.