Characteristics

Study group

Bilateral control group

P-value^c)

Total number of patients, n

2366

2427

Age at surgery (y), mean ± SD

min (y)

max (y)

76.0 ± 9.6

33.0

102.0

75.6 ± 8.2

34.0

97.0

0.07^a)

Female sex (%)

1474 (62.3)

1475 (60.8)

0.29^b)

AL. mean ± SD

right eye

data missing, n (%)

left eye

data missing, n (%)

23.57 ± 1.38

51 (2.16)

23.52 ± 1.34

55 (2.32)

23.61 ± 1.15

7 (0.29)

23.58 ± 1.15

7 (0.29)

0.33 ^a)

0.08 ^a)

Keratometry (D), mean ± SD

Right eye

min (D)

max (D)

data missing, n (%)

Left eye

min (D)

max (D)

data missing, n (%)

43.84 ± 1.61

34.00

54.97

48 (2.03)

43.93 ± 1.62

36.25

55.51

51 (2.16)

43.73 ± 1.49

36.75

53.74

6 (0.25)

43.79 ± 1.48

36.64

50.45

7 (0.29)

0.01^a)*

0.001 ^a)*

 Preoperative refraction SE (D).

mean ± SD. (min, max)

right eye

data missing, n (%)

left eye

data missing, n (%)

0.1 ± 3.39 (-19.13, +9.50)

51 (2.16)

0.17 ± 3.29 (-20.38, +9.5)

44 (1.86)

-0.21 ± 2.90 (-16.50, +8.13)

28 (1.15)

-0.14 ± 2.88 (-16.38, +10.75)

40 (1.65)

< 0.001^a)*

< 0.001^a)*