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Table 2 Main Pentacam indicesa and bivariate analysis

From: A predictive model for early diagnosis of keratoconus

 

Controls

ESKC

KC

ESKC Vs Controls p-Value

KC Vs Controls p-Value

Anterior surface topography

 Kmb

43.55(1.43)

43.37(1.55)

48.26(4.64)

0.616

 

 KMAXb

45.49(1.92)

45.91(1.97)

55.14(7.66)

0.285

< 0.01

 IVA

0.16(0.08)

0.28(0.14)

0.79(0.51)

< 0.01

< 0.01

Posterior surface topography

 Km

−6.246(0.22)

−6.148(0.34)

−7.15(0.9)

0.067

< 0.01

 Pachymetry

 CCTc

543.76(36.42)

515.20(27.59)

466.92(55.94)

< 0.01

< 0.01

 MCTc

538.52(37.03)

503.67(26.62)

456.93(50.65)

< 0.01

< 0.01

Corneal Aberrometryd

 RMS HOA

0.52(0.23)

0.69(0.31)

1.74(1.02)

< 0.01

< 0.01

 Ant Coma 90°

0.01(0.20)

− 0.49(0.43)

−2.06(1.51)

< 0.01

< 0.01

 Post Coma 90°

−0.01(0.05)

0.11(0.10)

0.53(0.39)

< 0.01

< 0.01

 Coma 90°

0.01(0.21)

−0.40(0.32)

−1.88(1.41)

< 0.01

< 0.01

 Trefoil 0°

0.03(0.18)

0.08(0.22)

0.09(0.34)

0.396

< 0.01

 Sph. Aberrat

0.20(0.14)

0.18(0.16)

−0.279(0.75)

0.204

< 0.01

  1. amean (sd) CCT = Central Corneal Thickness, MCT = Minimum corneal thickness, Sph Aberrat = Spherical Aberration, bdiopters cμm dRMS (μm)