Researchers from Schepens Eye Research Institute of Massachusetts Eye and Ear are developing new devices based on prism-containing eyewear to help reduce pedestrian collisions in crowded open spaces, such as bus terminals and shopping malls, for those who are partially blind or have limited peripheral vision.
According to researchers, they have created a mathematical model to determine collision risk and found the risk of collision is highest from pedestrians at an angle of 45 degrees from the patient's walking path. Researchers are now using previously-designed prism-containing eyewear to develop new devices to help expand the visual field to cover that angle in patients with hemianopia caused by a stroke, brain tumor or trauma, or patients with limited peripheral vision from retinitis pigmentosa, Usher syndrome, choroideremia and advanced glaucoma.
The study was recently published in the Journal of Vision, published by the Association for Research in Vision and Ophthalmology (ARVO).
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Source: Association for Research in Vision and Ophthalmology (ARVO)