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Table 1 Socio-demographic and ophthalmological characteristics

From: Rotation of a toric intraocular lens with and without capsular tension ring: data from a multicenter non-inferiority randomized clinical trial (RCT)

 

total

without CTR

(non-CTR sub sample)

with CTR

(CTR sub sample)

p-value

total number of study eyes

179

90

89

 

… per center

3–37

1–19

2–18

 

age [years]

71.0 (61.8; 76.3)

71.0 (60.8; 76.0)

70.0 (61.3; 77)

0.718

female patients %

47%

44%

50%

0.431

CDVA (decimal)

0.5 (0.32; 0.5)

0.5 (0.32; 0.5)

0.4 (0.3; 0.5)

0.608

Axial length [mm]

23.8 (23.2; 24.4)

23.7 (23.2; 24.3)

23.9 (23.3; 24.6)

0.168

Cylinder [dpt] AR

−1.5 (−2.25; −1.0)

−1.5 (− 2.25; − 1.0)

−1.75 (− 2.63; − 1.0)

0.537

target cylinder. [dpt] Toric Calculator

− 0.1 (− 0.22; 0.03)

−0.08 (− 0.16; + 0.03)

−0.14 − 0.25; 0.06)

0.555

SEQ [dpt] AR

− 1.0 (− 3.13; + 0.88)

− 1.06 (− 2.91; 1.0)

1.0 (−3.56; 0.56)

0.356

target refraction. [dpt]

0.0 (− 0.13; 0.06)

0.0 (− 0.13; 0.06)

0.0 (− 0.13; 0.06)

0.631

IOL-M. K1. [mm]

7.84 (7.68; 8.01

7.82 (7.67; 7.97)

7.86 (7.69; 8.06)

0.141

IOL-M. K2. [mm]

7.55 (7.41; 7.72)

7.54 (7.39; 7.66)

7.58 (7.41; 7.74)

0.334

CT. K1. [mm]

7.84 (7.67; 8.01)

7.83 (7.7; 7.98)

7.88 (7.67; 8.04)

0.201

CT. K2. [mm]

7.56 (7.43; 7;72)

7.56 (7.39; 7.72)

7.60 (7.44; 7.72)

0.427

  1. Pooled study sample (intent-to-treat population), stratified with and without capsular tension ring (CTR), medians and interquartile ranges, relative frequencies as well as nominal p-values derived from two-sample Wilcoxon tests and Chi2 tests (p-values not adjusted for multiplicity)
  2. SEQ: Spherical Equivalent, IOL-M: IOL Master (Carl Zeiss Meditec), CT: Corneal Topography, CDVA corrected distance visual acuity, CTR: Capsular Tension Ring, AR: Auto Refractometer, K: Keratometry, mm: millimeter