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Table 4 Visual acuity, refraction and contrast sensitivity outcome

From: Objective and subjective diagnostic parameters in the fellow eye of unilateral keratoconus

test

KCN

FFCK

Control

KCN vs control

FFKC VS control

KCN vs FFKC

CDVA

0.8 ± 0.2

1.03 ± 0.15

1.13 ± 0.1

<0.001

0.06

0.05

SE

−5.05 ± 4.5

−1.8 ± 2.8

−1.5 ± 2.1

<0.001

0.07

<0.01

Contrast sensitivity (%)

45.6% ± 8.2

65.6 ± 4.5

81.3 ± 5.2

<0.001

0.06

0.04

Glare(%)

41.5% ± 6.6

62 ± 5.2

77.2 ± 6.4

<0.001

<0.001

0.2

  1. CDVA corrected distant visual acuity, KCN keratoconus, FFKC forme fruste keratoconus, SE Spherical equivalent