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Table 2 Differences in biomechanical parameters between central cones and peripheral cones for axial topography

From: Keratoconus cone location influences ocular biomechanical parameters measured by the Ocular Response Analyzer

Parameters

Central-cone cohort (n = 37)

Peripheral-cone cohort (n = 41)

P value

Waveform score

5.99 ± 1.96

7.26 ± 1.78

0.004*

Corneal hysteresis (mmHg)

8.90 ± 1.57

9.31 ± 1.60

0.26

P1area

3080 ± 1485

4127 ± 1209

0.001*

P2area

3310 ± 1490

4439 ± 1467

0.001*

W1

18.78 ± 2.46

19.05 ± 2.45

0.64

W2

25.22 ± 6.53

25.12 ± 5.75

0.95

H1

361 ± 167

463 ± 127

0.003*

H2

324 ± 124

426 ± 131

0.0007*

  1. Values are mean ± standard deviation. Significance threshold α = 0.05
  2. P1area = area of the first peak; P2area = area of the second peak; W1 = width of the first peak; W2 = width of the second peak; H1 = height of the first peak; H2 = height of the second peak
  3. *P < 0.05, t-test
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Eye and Vision

ISSN: 2326-0254