Through-focus response of multifocal intraocular lenses evaluated with a spatial light modulator.

A new testing technique based on the use of a liquid crystal spatial light modulator (SLM) is proposed to analyze the optical quality of multifocal intraocular lenses (MIOLs). Different vergences and decentrations of the incident beam can be programmed onto the SLM in order to record the point spread function (PSF) for different object positions. From these axial PSFs, the through-focus modulation transfer function is computed. Because there are no moving parts in the experimental setup, this method is fast and versatile to assess MIOLs. Experimental results confirm the potential of the proposed method.

[1]  Charles J. Koester,et al.  Measurement of intraocular lens decentration and tilt in vivo , 1988, Journal of cataract and refractive surgery.

[2]  Achim Langenbucher,et al.  Effect of decentration and tilt on the image quality of aspheric intraocular lens designs in a model eye , 2009, Journal of cataract and refractive surgery.

[3]  Sergio Barbero,et al.  Optical aberrations of intraocular lenses measured in vivo and in vitro. , 2003, Journal of the Optical Society of America. A, Optics, image science, and vision.

[4]  Wilhelm Stork,et al.  Imaging quality of intraocular lenses , 2005, Journal of cataract and refractive surgery.

[5]  V Portney.  Optical testing and inspection methodology for modern intraocular lenses , 1992, Journal of cataract and refractive surgery.

[6]  Futoshi Taketani,et al.  Influence of intraocular lens tilt and decentration on wavefront aberrations , 2004, Journal of cataract and refractive surgery.

[7]  Y. Emori,et al.  Measurement of postoperative intraocular lens tilting and decentration using Scheimpflug images , 1989, Journal of cataract and refractive surgery.

[8]  D. Atchison.  Optical Design of Intraocular Lenses. III. On-Axis Performance in the Presence of Lens Displacement , 1989, Optometry and vision science : official publication of the American Academy of Optometry.

[9]  T. Lépine,et al.  Comparison of the efficiency, MTF and chromatic properties of four diffractive bifocal intraocular lens designs. , 2010, Optics express.

[10]  Junoh Choi,et al.  Application of the polychromatic defocus transfer function to multifocal lenses. , 2008, Journal of refractive surgery.

[11]  V. Portney.  Light distribution in diffractive multifocal optics and its optimization , 2011, Journal of cataract and refractive surgery.

[12]  M J Simpson.  Diffractive multifocal intraocular lens image quality. , 1992, Applied optics.

[13]  Edward DeHoog,et al.  Problems testing diffractive intraocular lenses with Shack-Hartmann sensors. , 2010, Applied optics.

[14]  Stephen S. Lane,et al.  Optical performance of 3 intraocular lens designs in the presence of decentration , 2005, Journal of cataract and refractive surgery.

[15]  J. Rodrigo,et al.  Experimental generation and characterization of Devil’s vortex-lenses , 2012, Applied Physics B.

[16]  Jim Schwiegerling.  Analysis of the optical performance of presbyopia treatments with the defocus transfer function. , 2007, Journal of refractive surgery.

[17]  Chromatic Aberration and Optical Power of a Diffractive Bifocal Contact Lens , 1992, Optometry and vision science : official publication of the American Academy of Optometry.

[18]  Susana Marcos,et al.  Tilt and decentration of intraocular lenses in vivo from Purkinje and Scheimpflug imaging: Validation study , 2007, Journal of cataract and refractive surgery.