A smartphone attachment developed by University of California San Diego researchers could be used for low-cost neurological screenings, to ensure accurate results regardless of the user's skin tone.
The attachment is placed over the smartphone's camera to take videos and measurements of the subject’s pupil, as changes in pupil size during certain tasks can help assess an individual's neurological functions.
The attachment helps conventional color smartphone cameras, which have a hard time distinguishing the pupil from the iris in individuals with dark eye colors.
It features a specialized filter that allows far-red light into the camera while blocking other wavelengths, making it easier for the camera to see the pupil because the iris appears much lighter.
From UC San Diego Today
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