Table 1 Simulated K, posterior K, and true net power (TNP)
From: Analysis of total corneal astigmatism with a rotating Scheimpflug camera in keratoconus
Simulated K | Posterior K | True net power (TNP) | * p value | |
|---|---|---|---|---|
Mean keratometry (diopter) | 49.12 ± 3.99 | −7.39 ± 0.79 | 47.78 ± 4.09 | < 0.001 |
Mean arithmetic astigmatism (diopter) | 4.58 ± 2.14 | 0.91 ± 0.47 | 4.59 ± 2.17 | 0.34 |
KP(0) (diopter) | − 2.74 ± 3.24 | 0.64 ± 0.61 | − 2.78 ± 3.31 | 0.81 |
KP(45) (diopter) | 1.40 ± 2.40 | −0.27 ± 0.45 | 1.25 ± 2.39 | < 0.001 |