Journal of Ophthalmology / 2018 / Article / Tab 4

Research Article

Comparison of Color Light-Emitting Diode Corneal Topographer and Dual Rotating Scheimpflug–Placido Topographer

Table 4

Comparison of corneal index measurements using dual rotating Scheimpflug–Placido and color light-emitting diode corneal topographers in total group.

ParameterTotal group
DRSP (mean ± SD)Color LED (mean ± SD)Difference valueICC
Mean ± SD95% CI

Anterior corneal indices (D)
 simK41.07 ± 2.7641.09 ± 2.870.03 ± 0.37-0.04, 0.090.4510.996
 Astigmatism magnitude1.09 ± 0.721.13 ± 0.780.04 ± 0.36−0.03, 0.100.2560.938
J0−0.46 ± 0.39−0.47 ± 0.44−0.00 ± 0.19−0.04, 0.030.8740.947
J450.04 ± 0.24−0.02 ± 0.25−0.05 ± 0.15−0.08, 0.030.0000.906
Posterior corneal indices (D)
 simK−6.41 ± 0.22−6.12 ± 0.320.29 ± 0.270.24, 0.340.0000.681
 Astigmatism magnitude−0.36 ± 0.11−0.40 ± 0.19−0.04 ± 0.20−0.07, −0.000.0270.334
J00.17 ± 0.060.13 ± 0.13−0.04 ± 0.14−0.06, −0.010.0040.180
J45−0.01 ± 0.06−0.01 ± 0.12−0.00 ± 0.13−0.03, 0.020.6950.000

CI, confidence interval; color LED, color light-emitting diode corneal topographer; DRSP, dual rotating Scheimpflug–Placido corneal topographer; ICC, intraclass correlation coefficient; K, keratometry. Paired sample t-test.