Guoqiang Li Vision Quotations

On the planet, over 90 percent of the population 45 years and older have difficulty reading, but their distance vision is OK. The current bifocal lenses are divided ... so when people are driving they are not using the bifocal lens. Our lens, with the focusing power, allows them to use the whole lens for different vision tasks at the same time.

The field of view is limited in such bifocal eyeglasses, requiring the user to gaze down to accomplish near visions tasks and in some cases causing dizziness and discomfort. In stimulated and actual human vision tests, the new lens performed well at both near and far focusing tasks. These results represent a significant advance in vision care.