New Optical Technology for Providing Extended Range of Vision
Narrative Responses:
Purpose
To describe a new innovative Intraocular Lens design that exhibits an extended range of vision.
Methods
A variety of existing and new technologies were assessed using computer simulations and lab measurements. Combinations of refractive and diffractive technologies were included. The resulting technology is described. Lenses were produced and tested in model eyes. Results will be presented.
Results
The new IOL design merges four optical technologies: (1) correction of spherical aberration (2) reduction of chromatic aberration by a high Abbe number. Modified diffractive technology was used to (3) further correct chromatic aberration in the far focus, and (4) distribute light over a range of distances. Measurements showed very good image quality over a range of distances. Imaging quality at intermediate distances was better than that of reference monofocal and multifocal designs. The modulation transfer function (MTF) at far focus was maintained at the level of that of monofocal spherical and aspheric lenses.
Conclusion
Combination of new and existing diffractive and refractive technologies result in an IOL design with unique optical properties, suggesting that the optical design may provide an extended range of vision, without sacrificing visual quality at distance.