CATRA: Cataract Maps with Snap-on Eyepiece for Mobile Phones

From Camera Culture Group - MIT Media Lab,

The program measures cataracts in the eye by crafting an optical solution on top of a mobile phone. The patient looks through the eye piece and answers questions about images. They compare the sequence of images modified by the forward scatter of the cataract and sensed in the retina's foveal region.

The goal is to allow a general audience to operate a portable high-contrast light-field display to gain a meaningful understanding of their own visual conditions. The compiled maps are used to reconstruct the cataract-affected view of an individual, offering a unique approach for capturing information for screening

Current solutions rely on highly-trained clinicians to check the back scattering in the lens and visual acuity tests.

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