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Table 2 Demographic characteristics and intraoperative data of the two groups

From: Viscoat versus Visthesia during phacoemulsification cataract surgery: corneal and foveal changes

  Viscoat group (n = 41) Visthesia group (n = 36) p
Continuous variables mean ± SD mean ± SD  
Age (years) 77.6 ± 8.4 77.7 ± 8.7 0.949
BCVA preoperatively (LogMAR) 0.42 ± 0.22 0.41 ± 0.25 0.844
ECC preoperatively (cells/mm2) 2424.9 ± 449.03 2307.6 ± 382.63 0.225
CCT preoperatively (μm) 554.9 ± 43.75 560.2 ± 42.84 0.591
Macular thickness preoperatively (μm) 156.9 ± 23.33 159.2 ± 26.56 0.684
U/S duration intraoperatively (min) 0.83 ± 0.70 0.66 ± 0.38 0.483
Total operating time (min) 15.90 ± 2.97 14.43 ± 1.85 0.012
Intraoperative pain (VAS score) 3.27 ± 0.81 1.00 ± 0.76 <0.0001
Categorical and ordinal variables N N  
Sex    
Male/Female 15/26 11/25 0.577
Operated eye    
Right/Left 20/21 19/17 0.726
  1. BCVA = best corrected visual acuity; ECC = endothelial cell count; CCT = central corneal thickness; U/S = ultrasound; VAS = visual analog scale