Dark-Adapting Glasses for Persons with Light Adaptation Problems - David A. Ross

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As people age, their ability to adapt to widely-changing light levels can diminish. Pupil response times increase and the pupil will not open as widely nor close as tightly as the person ages. Further, with age-related retinal diseases, the retinal cells much more slowly to changing light levels. This can make it seem like the sun is painfully bright when going outdoors, and that inner lighting conditions are not bright enough when going indoors. For some, it may take from one to three minutes for their eyes to adapt when going outdoors, or coming inside. Since moving about safely is linked to functional vision, people with this problem must stop and wait for their eyes to adapt before continuing to walk. We developed dark-adapting glasses to address this problem. In tests of this technology, we have found that for a majority of people with this problem, the developed dark-adapting glasses help them function more normally.
https://mediaspace.gatech.edu/media/ross/1_08u9xc5x

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Dark-Adapting Glasses for Persons with Light Adaptation Problems - David A. Ross

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