1. A dual optic accommodating foldable intraocular lens
- Author
-
V Portney, Stephen D. McLeod, and A Ting
- Subjects
Optics and Photonics ,medicine.medical_specialty ,genetic structures ,medicine.medical_treatment ,Clinical Science - Scientific Reports ,Intraocular lens ,Prosthesis Design ,Cellular and Molecular Neuroscience ,Lens Implantation, Intraocular ,Intraocular lens design ,Cadaver ,Ophthalmology ,medicine ,Humans ,Lenses, Intraocular ,Phacoemulsification ,Optic lens ,business.industry ,fungi ,food and beverages ,Accommodation, Ocular ,eye diseases ,Sensory Systems ,Intraocular lenses ,Capsular bag ,Ray tracing (graphics) ,sense organs ,business - 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.
- Published
- 2003