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Table 3 Correlations between corneal biomechanical parameters and demographic or ocular parameters

From: Corneal biomechanical properties in healthy children measured by corneal visualization scheimpflug technology

 

Age

CCT

Sex

SE

IOP

r

P

r

P

r

P

r

P

r

P

Right eye

 A1T, ms

0.071

0.464

0.272

0.004

0.145

0.131

−0.104

0.278

0.995

<0.001

 A1L, mm

0.102

0.288

0.281

0.003

0.027

0.783

1.000

0.298

0.170

0.076

 A1V, m/s

−0.035

0.719

−0.170

0.075

−0.043

0.655

0.047

0.626

−0.735

<0.001

 A1DA, mm

−0.137

0.152

0.407

<0.001

−0.075

0.437

0.167

0.079

0.509

<0.001

 A2T,ms

0.014

0.888

−0.253

0.010

−0.205

0.038

0.125

0.205

−0.355

<0.001

 A2L, mm

0.018

0.857

0.089

0.371

−0.103

0.298

−0.065

0.511

0.148

0.134

 A2V, m/s

0.027

0.788

0.114

0.252

−0.034

0.736

0.115

0.242

0.525

<0.001

 A2DA, mm

−0.117

0.239

0.311

0.001

0.116

0.242

0.409

<0.001

−0.158

0.112

 HCT, ms

0.014

0.882

0.063

0.513

0.076

0.429

0.234

0.014

−0.122

0.205

 PD, mm

−0.282

0.003

−0.003

0.974

−0.131

0.173

−0.049

0.608

−0.149

0.120

 RoC, mm

0.136

0.155

0.125

0.194

−0.021

0.824

0.070

0.468

0.319

0.001

 MDA, mm

0.026

0.789

−0.139

0.147

−0.113

0.241

−0.071

0.456

−0.801

<0.001

Left eye

 A1T, ms

−0.038

0.696

0.333

<0.001

0.074

0.445

−0.041

0.668

0.995

<0.001

 VA1L, mm

−0.078

0.425

0.104

0.286

−0.034

0.729

0.175

0.067

0.197

0.041

 A1V, m/s

−0.077

0.426

0.033

0.735

−0.052

0.595

0.039

0.690

−0.444

<0.001

 A1DA, mm

−0.083

0.395

0.426

<0.001

0.031

0.749

0.076

0.428

0.538

<0.001

 A2T,ms

−0.005

0.957

−0.041

0.684

0.033

0.740

0.077

0.434

−0.383

<0.001

 A2L, mm

0.153

0.123

0.249

0.011

−0.020

0.838

0.064

0.516

0.158

0.112

 A2V, m/s

−0.026

0.801

0.193

0.055

0.154

0.126

0.100

0.315

0.458

<0.001

 A2DA, mm

−0.091

0.370

0.026

0.798

0.093

0.355

0.233

0.019

−0.152

0.130

 HCT, ms

−0.101

0.298

0.051

0.601

0.129

0.183

0.084

0.381

−0.119

0.218

 PD, mm

0.074

0.448

−0.159

0.101

−0.122

0.208

−0.242

0.011

−0.193

0.046

 RoC, mm

0.059

0.545

0.161

0.096

0.008

0.937

0.249

0.090

0.260

0.007

 MDA, mm

0.078

0.421

−0.167

0.084

−0.042

0.667

−0.257

0.007

−0.798

<0.001

  1. IOP Intraocular pressure, CCT Central corneal thickness, SE spherical equivalent
  2. A1T Time from start to the first flatterning of cornea, A1L Length of flattened cornea in the first applanation, A1V Inward velocity of the cornea in the first applanation, A1DA Cornea apex displacement in vertical direction at first applanation, A2T Time from start to second flattening of the cornea, A2L Length of flattened cornea in the second applanation, A2V Outward velocity of the cornea in the second applanation, A2DA Cornea apex displacement in vertical direction at second applanation, HCT Time from start to the highest concavity of cornea, PD Distance between the corneal peaks at maximal concavity, RoC Radius of curvature of the corneal at highest concavity, MDA Cornea apex displacement in vertical direction at highest concavity
  3. Bold indicates statistical significance (P < 0.05)