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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 24 — Dec. 15, 2013
  • pp: 5303–5306

Multifocal intraocular lens providing optimized through-focus performance

David Fernández, Sergio Barbero, Carlos Dorronsoro, and Susana Marcos  »View Author Affiliations


Optics Letters, Vol. 38, Issue 24, pp. 5303-5306 (2013)
http://dx.doi.org/10.1364/OL.38.005303


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Abstract

A widespread type of multifocal intraocular lens (MIOL) is based on expanding the depth of focus with specific amounts of spherical aberration. However, knowing the optimal wavefront aberration for multifocality does not directly provide a MIOL geometry. To overcome this issue, we present a new strategy to design MIOLs. The method optimizes directly the IOL surface geometries (aspheres with aspherical coefficients up to tenth order) using a multisurface pseudophakic eye model and a multiconfiguration approach, where the merit function jointly considers the optical quality at different object plane locations. An example of MIOL [22 diopters (D) far distance correction] was designed. For this design, the ocular modulator transfer function (MTF) at 50 cycles per millimeter remained above 0.47 for all object locations. The design provides high optical quality performance for far and intermediate distances and peak optical performance at near distances (MTF>0.57). Additionally, the design shows good performance against pupil changes (3–5 mm pupil diameter range). Finally, when the MIOL was tested on pseudophakic eye models with corneal spherical aberrations within a typical population range, the high multifocal performance was maintained in almost 40% of potential patients (ignoring asymmetric aberrations effects).

© 2013 Optical Society of America

OCIS Codes
(220.3620) Optical design and fabrication : Lens system design
(220.4830) Optical design and fabrication : Systems design
(330.4460) Vision, color, and visual optics : Ophthalmic optics and devices
(330.7310) Vision, color, and visual optics : Vision

ToC Category:
Vision, Color, and Visual Optics

History
Original Manuscript: September 12, 2013
Revised Manuscript: November 5, 2013
Manuscript Accepted: November 8, 2013
Published: December 5, 2013

Virtual Issues
Vol. 9, Iss. 2 Virtual Journal for Biomedical Optics

Citation
David Fernández, Sergio Barbero, Carlos Dorronsoro, and Susana Marcos, "Multifocal intraocular lens providing optimized through-focus performance," Opt. Lett. 38, 5303-5306 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-24-5303

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