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Table 1 Demographic and biometric data of patients, by group

From: Intraocular lens power calculation formulas accuracy in combined phacovitrectomy: an 8-formulas comparison study

Parameter

Group 1

Phacoemulsification alone

n = 100

Group 2

Combined phacovitrectomy

n = 120

p-value

Age, years

76.72 ± 10.34 (46–94)

74.35 ± 6.51 (59–89)

0.0011

Female gender, n (%)

52 (52.0)

52 (42.3)

0.2182

Axial length, mm

23.52 ± 1.13 (21.14–26.91)

23.41 ± 0.99 (21.26–26.91)

0.3201

Anterior chamber depth, mm

3.23 ± 0.43 (2.06–4.64)

3.21 ± 0.41 (2.33–4.32)

0.7623

Mean Keratometry, D

43.92 ± 1.55 (40.69–47.96)

44.14 ± 1.40 (40.28–47.27)

0.2113

Corneal Thickness, µm

538.76 ± 32.71 (472–645)

548.39 ± 33.58 (457–654)

0.6943

Lens Thickness, mm

4.39 ± 0.51 (2.56–5.44)

4.52 ± 0.45 (3.59–5.79)

0.3213

Horizontal corneal diameter, mm

11.95 ± 0.42 (10.99–12.82)

11.86 ± 0.44 (10.41–13.27)

0.7223

Implanted IOL power, D

21.39 ± 2.87 (12.0–28.0)

21.27 ± 2.69 (12.0–29.0)

0.7391

Postoperative refractive SE, D

− 0.06 ± 0.55 (− 2.13 to 1.63)

− 0.06 ± 0.58 (− 1.38 to 1.38)

0.8601

  1. Results are expressed as mean ± standard deviation (range)
  2. IOL intraocular lens, SE spherical equivalent, D diopters
  3. 1Mann-Whiney-U test; 2Chi-square test; 3Independent samples t-test