RT Journal Article
T1 Evaluation of the meridional longitudinal spherical aberration from corneal topography measurements
A1 Rueda Ordax, Gloria María
A1 Alda, Javier
A1 Bernabeu Martínez, Eusebio
AB This paper shows how corneal topographic data can be used to determine the value of the longitudinal spherical aberration. We have obtained the corneal profiles and the values of the longitudinal spherical aberration for the rays propagating within the steepest and flattest meridional planes, by using a real raytracing algorithm. These corneal profiles have been also fitted to conicoids and the asphericity parameter has been calculated. We have found that the longitudinal spherical aberration follows a parabolic dependence for a circular region of 5 mm in diameter. This parabolic dependence has been fitted with a polynomial function. The data provided by commercial topographic systems can be used to obtain the longitudinal spherical aberration along the selected meridians.
PB Gustav Fischer Verlag
SN 0030-4026
YR 2010
FD 2010
LK https://hdl.handle.net/20.500.14352/44291
UL https://hdl.handle.net/20.500.14352/44291
LA eng
NO © 2010 Elsevier GmbH.We are deeply grateful to Dr. Eduard A. Phillipe, of EyeSys Laboratories Inc. for allowing us to use the ‘‘cornsag’’ utility. We also appreciate very much the collaboration of the Ophthalmology Department of the University Complutense of Madrid for facil- itating the use of the videokeratometer.
DS Docta Complutense
RD 9 abr 2025