The Effectiveness of First-Generation iStent Microbypass Implantation Depends on Initial Intraocular Pressure: 24-Month Follow-Up—Prospective Clinical Trial

Table 1

Patients’ demographic data.

	IOP < 26	IOP ≥ 26
N	54	18
Age (years)	73.53 ± 8.25	69.17 ± 11.09	0.081
Gender, n (%)
Female	40 (74.1)	12 (66.7)	0.761
Male	14 (25.9)	6 (33.3)
Glaucoma type, n (%)
POAG	48 (88.9)	14 (77.8)	0.413
PXG	6 (11.1)	4 (22.2)	0.413
Follow-up (months)	19.33 ± 8.54	20.33 ± 3.20	0.096

Student’s t-test, χ² test, or Fisher’s exact test; data are presented as mean ± SD unless otherwise indicated. POAG: primary open-angle glaucoma; PXG: normal tension glaucoma.