From: Study and characterization of morphogeometric parameters to assist diagnosis of keratoconus
Variables | Total corneal volume | Anterior corneal surface area | Posterior corneal surface area | Total corneal surface area | Anterior apex deviation | Posterior apex deviation | Anterior minimum thickness point deviation | Posterior minimum thickness point deviation |
---|---|---|---|---|---|---|---|---|
Total corneal volume | r = 1 | r = 0.010 (p = 0.911) | r = − 0.271 (p = 0.008) | r = 0.953 (p = 0.000) | r = − 0.041 (p = 0.690) | r = 0.211 (p = 0.39) | r = − 0.45 (p = 0.664) | r = − 0.029 (p = 0.758) |
Anterior corneal surface area | r = 0.01 (p = 0.911) | r = 1 | r = − 0.801 (p = 0.000) | r = 0.374 (p = 0.000) | r = − 0.062 (p = 0.550) | r = 0.019 (p = 0.855) | r = 0.072 (p = 0.486) | r = 0.046 (p = 0.655) |
Posterior corneal surface area | r = − 0.271 (p = 0.008) | r = − 0.801 (p = 0.000) | r = 1 | r = 0.702 (p = 0.000) | r = − 0.092 (p = 0.370) | r = 0.127 (p = 0.217) | r = 0.025 (p = 0.810) | r = − 0.000 (p = 0.999) |
Total corneal surface area | r = 0.953 (p = 0.000) | r = 0.374 (p = 0.000) | r = 0.702 (p = 0.000) | r = 1 | r = − 0.075 (p = 0.473) | r = 0.226 (p = 0.27) | r = − 0.29 (p = 0.783) | r = − 0.030 (p = 0.761) |
Anterior apex deviation | r = − 0.041 (p = 0.690) | r = − 0.062 (p = 0.550) | r = − 0.092 (p = 0.370) | r = − 0.075 (p = 0.473) | r = 1 | r = 0.015 (p = 0.88) | r = 0.089 (p = 0.389) | r = 0.082 (p = 0.427) |
Posterior apex deviation | r = 0.211 (p = 0.39) | r = 0.019 (p = 0.855) | r = 0.127 (p = 0.217) | r = 0.226 (p = 0.27) | r = 0.015 (p = 0.88) | r = 1 | r = 0.150 (p = 0.141) | r = 0.169 (p = 0.101) |
Anterior minimum thickness point deviation | r = − 0.45 (p = 0.664) | r = 0.072 (p = 0.486) | r = 0.025 (p = 0.810) | r = − 0.29 (p = 0.783) | r = 0.089 (p = 0.389) | r = 0.150 (p = 0.141) | r = 1 | r = 0.996 (p = 0.000) |
Posterior minimum thickness point deviation | r = − 0.029 (p = 0.758) | r = 0.046 (p = 0.655) | r = − 0.000 (p = 0.999) | r = − 0.030 (p = 0.761) | r = 0.082 (p = 0.427) | r = 0.169 (p = 0.101) | r = 0.996 (p = 0.000) | r = 1 |