Calhoun Vision, Inc., is the world leader in adjustable intraocular lens technology. Calhoun's proprietary technology utilizes light to enable surgeons to change the power of a lens after it has been implanted. This offers the potential to provide unparalleled visual outcomes and customization to the specific visual needs of each patient. 

In the United States, the Food and Drug Administration (FDA) must first approve the lens before it can be marketed commercially. Calhoun Vision has completed Phases I and II of the required clinical investigation; the third and final phase of study has commenced, and all subjects have been fully enrolled in the study. Calhoun Vision, Inc. is a privately held company dedicated to enhancing people's quality of vision through advanced technology in materials science and optics. We have a separate corporate website at