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Biomedical Optics Express

Biomedical Optics Express

  • Editor: Joseph A. Izatt
  • Vol. 2, Iss. 6 — Jun. 1, 2011
  • pp: 1649–1662

Customized eye models for determining optimized intraocular lenses power

Carmen Canovas and Pablo Artal  »View Author Affiliations


Biomedical Optics Express, Vol. 2, Issue 6, pp. 1649-1662 (2011)
http://dx.doi.org/10.1364/BOE.2.001649


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Abstract

We have developed a new optical procedure to determine the optimum power of intraocular lenses (IOLs) for cataract surgery. The procedure is based on personalized eye models, where biometric data of anterior corneal shape and eye axial length are used. A polychromatic exact ray-tracing through the surfaces defining the eye model is performed for each possible IOL power and the area under the radial MTF is used as a metric. The IOL power chosen by the procedure maximizes this parameter. The IOL power for 19 normal eyes has been determined and compared with standard regression-based predictions. The impact of the anterior corneal monochromatic aberrations and the eye’s chromatic aberration on the power predictions has been studied, being significant for those eyes with severe monochromatic aberrations, such as post-LASIK cataract patients, and for specific IOLs with low Abbe numbers.

© 2011 OSA

OCIS Codes
(170.4460) Medical optics and biotechnology : Ophthalmic optics and devices
(330.5370) Vision, color, and visual optics : Physiological optics

ToC Category:
Ophthalmology Applications

History
Original Manuscript: March 16, 2011
Revised Manuscript: April 10, 2011
Manuscript Accepted: May 19, 2011
Published: May 20, 2011

Citation
Carmen Canovas and Pablo Artal, "Customized eye models for determining optimized intraocular lenses power," Biomed. Opt. Express 2, 1649-1662 (2011)
http://www.opticsinfobase.org/boe/abstract.cfm?URI=boe-2-6-1649


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