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Table 1 Demographic and baseline ocular characteristics

From: Gonioscopy-assisted transluminal trabeculotomy versus goniotomy with Kahook dual blade in patients with uncontrolled juvenile open-angle glaucoma: a retrospective study

  GATT KDB P value
Number of eyes (patients) 36 (28) 13 (10)  
Age at surgery (years, mean ± SD) 27.83 ± 9.98 (n = 36) 23.3 ± 10.63 (n = 13) 0.450a
Sex (Male, %) 24 (85.7%) 10 (100%) 0.210b
History of glaucoma surgery (%) 16 (44.4%) 3 (23.1%) 0.175 b
Filtration surgery 4   
KDB 3   
SLT 9 3  
Preoperative IOP (mmHg, mean ± SD) 30.48 ± 12.88 (n = 36) 26.08 ± 13.11 (n = 10) 0.164 a
Number of preoperative medications (mean ± SD) 3.71 ± 0.46 (n = 35) 3.08 ± 0.86 (n = 13) 0.023d
Cup-to-disc ratio (mean ± SD) 0.83 ± 0.13 (n = 36) 0.88 ± 0.10 (n = 13) 0.096 a
Axial length (mm, mean ± SD) 26.43 ± 1.92 (n = 36) 27.06 ± 1.52 (n = 13) 0.169c
CCT (μm, mean ± SD) 544.2 ± 31.01 (n = 35) 541.77 ± 28.58 (n = 13) 0.807 c
RNFL (μm, mean ± SD) 64.8 ± 16.72 (n = 35) 66.0 ± 19.74 (n = 13) 0.945 a
GCC (μm, mean ± SD) 62.09 ± 13.3 (n = 35) 61.58 ± 7.87 (n = 13) 0.625 a
MD (dB, mean ± SD) 17.24 ± 7.77 (n = 34) 21.43 ± 5.25 (n = 11) 0.104 c
Follow-up duration (days, Median, P25 ~ P75) 224.5, 129 ~ 289 415, 275 ~ 479 0.002 a
  1. GATT gonioscopy-assisted transluminal trabeculotomy, KDB Kahook dual blade, CCT central corneal thickness, RNFL retinal nerve fiber layer, GCC ganglion cell complex, MD mean deviation
  2. a Mann-Whitney U test
  3. b Chi-square test
  4. c Student’s t test
  5. d Corrected student’s t test