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Table 1 Patient characteristics

From: Visual and patient-reported outcomes of a diffractive trifocal intraocular lens in highly myopic eyes: a prospective multicenter study

Parameters

Control group

(n = 273)

High myopia group

(n = 105)

Extreme myopia group

(n = 78)

P value

Age (years)a

60.5 ± 12.0

58.4 ± 9.2

57.7 ± 9.1

0.063

Sex, male/femaleb

119/154

42/63

37/41

0.602

Eye laterality, right/leftb

141/132

52/53

42/36

0.844

Axial length (mm)a

23.73 ± 1.08

26.83 ± 0.63

29.09 ± 0.87

 < 0.001

Preoperative corneal power (D)a

43.09 ± 1.17

43.06 ± 1.41

42.82 ± 0.96

0.211

Preoperative corneal astigmatism (D)a

0.64 ± 0.37

0.69 ± 0.39

0.73 ± 0.42

0.193

Mu chord (mm)a

0.20 ± 0.11

0.21 ± 0.11

0.21 ± 0.11

0.946

Mesopic pupil diameter (mm)a

4.66 ± 0.72

4.70 ± 0.65

4.85 ± 0.63

0.111

Photopic pupil diameter (mm)a

3.51 ± 0.44

3.50 ± 0.46

3.59 ± 0.41

0.333

Preoperative CDVA (logMAR)a

0.58 ± 0.39

0.64 ± 0.37

0.61 ± 0.41

0.375

IOL power (D)a

19.8 ± 3.1

11.4 ± 3.8

7.6 ± 4.6

 < 0.001

  1. D = diopter; CDVA = corrected distance visual acuity; logMAR = logarithm of the minimal angle of resolution; IOL = intraocular lens
  2. aOne-way ANOVA with Tukey’s post hoc test
  3. bχ2 test
  4. P values less than 0.05 are considered statistically significant