Comparison of Conventional Keratometry and Total Keratometry in Normal Eyes

Table 1

Demographics of the study population.

Characteristics
Number of subjects	50
Age	years (95% CI, 19.2 to 50.5 years)
Gender
Conventional keratometry	D (95% CI, 40.74 to 46.55 D)
Km, cornea front	D (95% CI, 40.65 to 46.29 D)
AvgK, keratometric	D (95% CI, 40.93 to 46.45 D)
Posterior corneal power	Pentacam: - D (95% CI, -6.79 to -5.78 D); CASIA 2: - D (95% CI, -6.63 to -5.71 D)
Total corneal refractive power (TCRP)	D (95% CI, 40.10 to 45.78 D)
True net power (TNP)	D (95% CI, 39.44 to 44.81 D)
Real power (RP)	D (95% CI, 39.90 to 45.35 D)

The results are expressed as (95% CI = confidence interval). D = diopter.