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Proceedings Paper

Technical monograph of the True Vista bifocal intraocular lens
Author(s): William J. Neubert; Ta-Chung Hsia; George F. Green; Mark S. Jones; Brian D. McCary; Susan M. Kastigar; Jose H. Bedoya
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Paper Abstract

The STORZTM TRUE VISTATM bifocal intraocular lens was evaluated in a laboratory setting and during clinical trials. The modulation transfer function and through focus response were measured in a simulated eye chamber for selection of optimal add zone size, location, power, and pupil dependency. Results indicate the optimal design to be an annular add power of +4 D having a 1.5 millimeter inner diameter and a 2.6 millimeter outer diameter. Optical performance was predicted using computer ray trace and Fourier analysis. Laboratory testing confirmed design performance achieved through the manufacturing process. Clinical results correlate well with through focus response but less well with modulation transfer function.

Paper Details

Date Published: 24 June 1993
PDF: 12 pages
Proc. SPIE 1877, Ophthalmic Technologies III, (24 June 1993); doi: 10.1117/12.147525
Show Author Affiliations
William J. Neubert, Storz Instrument Co. (United States)
Ta-Chung Hsia, Storz Instrument Co. (United States)
George F. Green, Storz Instrument Co. (United States)
Mark S. Jones, Storz Instrument Co. (United States)
Brian D. McCary, Storz Instrument Co. (United States)
Susan M. Kastigar, Storz Instrument Co. (United States)
Jose H. Bedoya, Storz Instrument Co. (United States)


Published in SPIE Proceedings Vol. 1877:
Ophthalmic Technologies III
Jean-Marie A. Parel; Qiushi Ren, Editor(s)

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