Corneal Topographic and Aberrometric Measurements Obtained with a Multidiagnostic Device in Healthy Eyes: Intrasession Repeatability

Table 5

Summary of correlations between different corneal aberrometric parameters and their within-subject standard deviation () associated.

	Correlation Pearson coefficient	value
HOA RMS (µm)	0.451	<0.001
Primary coma RMS ()	0.518	<0.001
Primary trefoil RMS ()	0.529	<0.001
Primary spherical aberration Zernike term ()	0.507	<0.001
Secondary astigmatism RMS ()	0.523	<0.001
Quadrafoil RMS ()	0.394	<0.001
Secondary coma RMS ()	0.562	<0.001
Secondary trefoil RMS ()	0.708	<0.001
Pentafoil RMS ()	0.714	<0.001
Secondary spherical aberration Zernike term ()	−0.014	0.886
Tertiary astigmatism RMS ()	0.511	<0.001
Secondary quadrafoil RMS ()	0.487	<0.001
Hexafoil RMS ()	0.514	<0.001
Tertiary coma RMS ()	0.375	<0.001
Tertiary trefoil RMS ()	0.487	<0.001
Secondary pentafoil RMS ()	0.715	<0.001
Heptafoil RMS ()	0.554	<0.001

SD, standard deviation; HOA, high order aberrations; RMS, root mean square.