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Custom wavefront optimization of intraocular lens asphericity
Author(s) -
GICQUEL JJ,
COHEN G,
CHATEAU N,
LEYNAUD P,
DONATE D
Publication year - 2008
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.2008.5232.x
Subject(s) - ophthalmology , intraocular lens , cornea , aberrations of the eye , wavefront , spherical aberration , intraocular lenses , residual , medicine , lens (geology) , optometry , optics , mathematics , visual acuity , physics , algorithm
Purpose To investigate the optimal amount of ocular spherical aberration (SA) in an intraocular lens (IOL) to maximize optical quality. Methods In 54 eyes of 27 patients, implantation of aspheric IOLs was simulated with different amounts of SA to produce residual ocular SA from ‐0.30 microm to +0.30 microm. Corneal wavefront aberrations up to 6th order were computed from corneal topographic elevation data. HOAs were measured with the Imagine Eyes IRX3 wavefront aberrometer. The PSF was calculated for the residual ocular higher‐order aberrations (up to the 6th order)with fully corrected 2nd‐order aberrations. 14 patients were implanted with the Tecnis (AMO)IOL and 13 with the SN60WF (Alcon France). Results The amount of optimal SA could be predicted based on other HOAs of the cornea. The amount of ocular SA varied among subjects and could be predicted based on corneal HOAs. Conclusion Selection of an aspheric IOL should be performed according to corneal HOAs.