Abstract
The ex vivo accommodation simulator stretches crystalline lenses radially under controlled conditions, while monitoring the changes in zonular tension and lens diameter. A dual coaxial laser beam system was added for measuring changes in optical power as the lens is stretched. The EVAS instrument was fully characterized and calibrated. The results from 3 porcine eyes will be presented. Several crystalline lenses, similar in shape and size to porcine lenses, were cast molded in silicone gels of different stiffness. These lenses were evaluated using the EVAS instrument and custom made lens holding fixtures. With their well defined shape and material properties, results from these measurements will be useful for cross-validation of finite element models.
| Original language | English (US) |
|---|---|
| Article number | 40 |
| Pages (from-to) | 240-251 |
| Number of pages | 12 |
| Journal | Progress in Biomedical Optics and Imaging - Proceedings of SPIE |
| Volume | 5688 |
| DOIs | |
| State | Published - Jul 21 2005 |
| Event | Ophtalmic Technologies XV - San Jose, CA, United States Duration: Jan 22 2005 → Jan 25 2005 |
Keywords
- Accommodation simulation
- Crystalline lens
- Lens stretcher
- Restoring accommodation
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Biomaterials
- Atomic and Molecular Physics, and Optics
- Radiology Nuclear Medicine and imaging