May 2008
Volume 49, Issue 13
Free
ARVO Annual Meeting Abstract  |   May 2008
Intraocular Lens Model Eye Based on the Average Presbyopic Human Eye
Author Affiliations & Notes
  • M. A. Lagana
    Bausch & Lomb, Rochester, New York
  • D. Compertore
    Bausch & Lomb, Rochester, New York
  • L. Costanza
    Bausch & Lomb, Rochester, New York
  • I. G. Cox
    Bausch & Lomb, Rochester, New York
  • Footnotes
    Commercial Relationships  M.A. Lagana, Bausch & Lomb, C; D. Compertore, Bausch & Lomb, E; L. Costanza, Bausch & Lomb, C; I.G. Cox, Bausch & Lomb, E.
  • Footnotes
    Support  None.
Investigative Ophthalmology & Visual Science May 2008, Vol.49, 3331. doi:https://doi.org/
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    • Get Citation

      M. A. Lagana, D. Compertore, L. Costanza, I. G. Cox; Intraocular Lens Model Eye Based on the Average Presbyopic Human Eye. Invest. Ophthalmol. Vis. Sci. 2008;49(13):3331. doi: https://doi.org/.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Purpose: : The purpose of this study is to present the design of a new 43D model eye that is geometrically and optically similar to the Liou and Brennan eye model. A comparison is made between the 43D eye model and the ISO 11979-2, Annex C model eye.

Methods: : The industry-standard Liou and Brennan eye model [1] was used as the baseline for an average presbyopic eye. The new 43D model eye was designed to be geometrically and optically similar to the Liou-Brennan eye model. Three tests were done to verify the design of the new 43D model eye. First, the total power of the 43D model eye and an ISO 11979-2 eye model were measured and compared to the Liou-Brennan eye model. Second, the spherical aberration (SA) of the 43D model eye and an ISO 11979-2 model eye were also measured. Finally, the expected add power of a simple two zone PMMA bifocal lens was analytically calculated using both model eyes and compared to the Liou-Brennan eye model.

Results: : The 43D model eye agrees better with the Liou-Brennan model geometrically and optically than the current ISO 11979-2 model eye.

Conclusions: : The new 43 D wetcell is better suited to testing IOL optical performance than the ISO 11979-2 prescribed model eye.[1] Liou H. and Brennan N.A., Anatomically accurate, finite model eye for optical modeling, J. Opt. Soc. Am. A, Vol. 14, No. 8, Aug 1997, 1684-1695.

Keywords: intraocular lens • optical properties • aberrations 
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