A dual optic accommodating foldable intraocular lens
- 1Department of Ophthalmology, University of California San Francisco, San Francisco, CA, USA
- 2Tustin, CA, USA
- 3Visiogen Inc, Irvine, CA, USA
- Correspondence to: Stephen D McLeod, MD, University of California San Francisco, Department of Ophthalmology, 10 Koret Way, K-301, San Francisco, CA 94143, USA; smcleod{at}itsa.ucsf.edu
- Accepted 26 January 2003
Abstract
Aim: To design an accommodating intraocular lens with extended accommodative range that can be adapted to current standard phacoemulsification and endocapsular implantation technique.
Method: Ray tracing analysis and lens design; cadaver eye implantation.
Results: Ray tracing analysis indicated that axial movement of an exaggerated converging anterior optic linked by spring loaded haptics to a compensatory static diverging posterior optic produced greater change in conjugation power of the eye compared to axial movement of a single optic lens. A dual optic one piece foldable silicone lens was constructed and implanted via a 4 mm corneal incision into the capsular bag of two cadaver eyes.
Conclusion: A dual optic intraocular lens design can increase the optical effect of a given displacement and suggests improvements for accommodating intraocular lenses.
Footnotes
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All authors have a financial interest in Visiogen Inc and the device described herein.
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Presented in part at the annual meeting of the American Society for Cataract and Refractive Surgeons, Philadelphia, 2002.
