The Light Adjustable Lens
Roy Freeman of RxSight guides us through the technology
Roy Freeman and Vance Thompson |
How did the concept of light adjustability arise?
The selection of IOL power for cataract surgery is not an exact science. Inaccuracies in biometry and the unpredictability of effective lens position and wound healing often result in residual refractive errors and unsatisfactory visual outcomes for patients. The rationale for the development of the Light Adjustable Lens was to address these important issues, given that cataract removal is one of the most commonly practiced surgeries in the world. The project started in 1997 with a collaboration by Daniel Schwartz from the University of California, San Francisco, and Robert Grubbs, Chemistry Professor at the California Institute of Technology. The objective? The creation of a biocompatible lens that could be safely and non-invasively reshaped with a laser after surgery to correct myopic, hyperopic and astigmatic refractive errors.
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