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Table 1 Comparison of preoperative patient parameters (Mean ± SD)

From: Influence of angle alpha on visual quality after implantation of extended depth of focus intraocular lenses

Parameter Group A1
(r<0.3 mm)
(27 eyes)
Group B1
(r ≥ 0.3 mm)
(52 eyes)
P Group A2
(r < 0.4 mm)
(41 eyes)
Group B2
(r ≥ 0.4 mm)
(38 eyes)
P Group A3
(r < 0.5 mm)
(60 eyes)
Group B3
(r ≥ 0.5 mm)
(19 eyes)
P
Age (y)a 57.89±11.21 56.90±8.41 0.662 57.51±10.34 56.95±8.40 0.792 55.82±12.27 56.79±10.45 0.756
UDVA (logMAR)b 0.96±0.58 0.80±0.44 0.302 0.96±0.54 0.74±0.41 0.088 0.88±0.53 0.76±0.36 0.604
CDVA (logMAR) b 0.57±0.34 0.52±0.30 0.490 0.55±0.33 0.52±0.29 0.819 0.52±0.33 0.58±0.26 0.212
AL (mm) b 23.95±1.01 23.65±1.12 0.142 23.92±0.99 23.58±1.17 0.089 23.88±1.08 23.35±1.03 0.067
ACD (mm) b 3.29±0.44 3.37±0.37 0.602 3.37±0.42 3.31±0.36 0.418 3.36±0.41 3.29±0.33 0.524
Km (D) a 43.78±1.32 43.65±1.73 0.720 43.65±1.39 43.74±1.80 0.809 43.72±1.40 43.60±2.14 0.813
LT (mm) a 4.13±0.49 4.07±0.41 0.563 4.12±0.49 4.06±0.38 0.532 4.11±0.42 4.03±0.48 0.454
Corneal astigmatism (D) b 0.67±0.27 0.62±0.30 0.471 0.65±0.27 0.62±0.32 0.617 0.63±0.28 0.67±0.36 0.590
Mesopic pupil size (mm) b 4.39±0.60 4.24±0.45 0.344 4.36±0.54 4.22±0.47 0.237 4.32±0.51 4.21±0.52 0.226
IOL power (D) b 21.06±2.03 21.61±2.72 0.064 21.24±2.09 21.61±2.90 0.178 21.10±2.65 22.42±1.69 0.058
Target refraction (D) a -0.55±0.18 -0.56±0.15 0.816 -0.56±0.17 -0.54±0.15 0.639 -0.56±0.16 -0.52±0.15 0.388
  1. SD Standard deviation, UDVA Uncorrected distance visual acuity, CDVA Corrected distance visual acuity, logMAR Logarithm of the minimum angle of resolution, AL Axial length, ACD Anterior chamber depth, Km Mean keratometry, LT Lens thickness, IOL Intraocular lens
  2. a parameters normally distributed
  3. b parameters not normally distributed