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Table 1 Baseline Demographics and Characteristics

From: Safety and efficacy outcomes of the Xen45 Gel Stent use for refractory glaucoma: a surgery series from surgeon trainees at a tertiary teaching hospital

Demographic/Characteristicn = 28 subjects
Mean Age, years (SD)66.6 (11.0)
Female, n (%)11 (39.3)
Ethnicity, n (%)
 Non-Hispanic White13 (46.0)
 Black/African American15 (54.0)
Type of glaucoma, n (%)
 Primary Open Angle17 (60.7)
 Juvenile Open Angle4 (14.3)
 Normal Tension3 (10.7)
 Pseudoexfoliative2 (7.1)
 Uveitic2 (7.1)
Preoperative lens status, n (%)
 phakic20 (71.4)
 pseudophakic8 (28.6)
 Total Prior Glaucoma Surgery, n (%)a6 (21.4%)
 Non-valved tube2 (7.1)
 ExPRESS shunt with MMC2 (7.1)
 Ahmed1 (3.6)
 TM iStent1 (3.6)
 Trabeculectomy1 (3.6)
 Diode1 (3.6)
 Goniotomy (GATT or KDB)0 (0.0)
Total Prior Non-Glaucoma Ocular Procedures, n (%)23 (82.1)
 Laser Trabeculoplasty21 (75.0)
 Prior other non-phacoemulsification surgery b2 (7.1)
Glaucoma Severityc
 Severe22 (78.6)
 Moderate2 (7.14)
 Mild4 (14.3)
 Mean Deviation, dB (SD)−14.58 (9.0)
 Mean preoperative IOP, mmHg (range, SD)21.7 (5.6)
  IOP range mmHg12–34
 Mean Glaucoma Medication Classesd, n (SD)3.7 (0.8)
 1 class0 (0.0)
 2 classes2 (7.1)
 3 classes7 (25.0)
 4 classes16 (57.1)
 5 classes3 (10.7)
  1. SD= standard deviation; MMC= mitomycin C; IOP= intraocular pressure; GATT= gonioscopy-assisted transluminal trabeculotomy; KDB= Kahook Dual Blade
  2. aOne subject with 3 prior glaucoma surgeries: a non-valved tube, diode, and ExPRESS shunt with MMC
  3. bIOL repositioning (n = 1), pars plana vitrectomy (n = 1)
  4. cGlaucoma severity is described as optic nerve abnormalities consistent with glaucoma and the following categorization of glaucomatous visual field abnormalities: Severe = both hemifields and/or loss within 5 degrees of fixation in at least one hemifield, Moderate = glaucomatous visual field abnormalities in one hemifield and not within 5 degrees of fixation, Mild = no abnormalities or only present on short-wavelength automated perimetry or frequency doubling perimetry
  5. dOral carbonic anhydrase inhibitors are considered their own class