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vision-correcting display

Contributor(s): Ivy Wigmore

A vision-correcting display is an assistive technology system that enables users to view the images on a screen without wearing glasses or contact lenses.

The technology can correct for common vision problems like near- and far-sightedness and astigmatism. Vision-correcting displays could also work for those with more serious problems such as spherical aberration, which cannot be addressed with corrective lenses. The systems could be used for displays on computers, televisions, smartphones, tablets and other devices. 

A prototype vision-correcting display system was developed as a collaborative project of MIT and the University of California at Berkeley. The system distorts the images on users' screens according to an algorithm that uses input from their individual prescriptions. The algorithm alters the brightness of individual pixels; rays of light are fed through tiny holes in a  light filter over the screen in such a way that when they hit the retina, the user sees a sharp image. 

See a video from MIT about their vision-correcting display project:

This was last updated in January 2015

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