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Table 1 Comparison of the corneal power and WTW distance values measured by the 2 devices

From: Comparison of the Orbscan II topographer and the iTrace aberrometer for the measurements of keratometry and corneal diameter in myopic patients

Parameters

Orbscan II

iTrace

P valuea

Kf (D)

42.56 ± 1.34

42.06 ± 1.34

<0.0001

Ks (D)

43.76 ± 1.58

43.21 ± 1.57

<0.0001

WTW (mm)

11.57 ± 0.34

11.33 ± 0.36

<0.0001

  1. Data are expressed as mean ± SD; apaired t test <0.05 considered significant; Kf = flat axis power; Ks = steep axis power, D = diopter
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BMC Ophthalmology

ISSN: 1471-2415

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