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Vision-impaired individuals estimate the arrival time of approaching vehicles surprisingly accurately

Howard G. Smith MD, AM on Instagram: "Electronic Retinal Implant Restores Vision Age-Related Macular degeneration is the leading cause of adult blindness, but Stanford University research ophthalmologists have developed an electronic retinal implant that promises to restore sight to millions. Their device, nicknamed PRIMA standing for photovoltaic retina implant microarray, includes a subretinal wireless implant and wearable video camera. The camera, mounted on an eyeglass frame, detects an image. That image is converted by a pocket processor into infrared laser light signals that are directed through the lens of the eye to the implant under the retina. The implant, in turn, creates the neural electrical signals that restore sight. The implant is entirely light-powered and requires no external power supply. This PRIMA system underwent a multisite, primary clinical trial at Stanford, the University of Pittsburgh, and Germany’s University of Bonn. A remarkable 27 of 32 implanted patients, 84%, regained the ability to read books, labels, and even street signs. Some could even correctly make out some of the smallest lines on a standard eye chart. The vision is black and white. Further refinement of the PRIMA chip is underway that promises a higher resolution and a refined grayscale. No word yet as to whether this system will restore full color vision, but bioengineering ingenuity might just achieve that result…..someday soon. https://www.sciencedaily.com/releases/2025/10/251022023118.htm#google_vignette https://www.nejm.org/doi/10.1056/NEJMoa2501396 #blindness #maculardegeneration #amd #prima #retinalimplant"

A new electronic retinal implant, PRIMA, is being tested in clinical trials and has shown remarkable results, with 84% of patients regaining the ability to read books, labels, and street signs. Further refinement of the chip is underway, and the device is entirely light-powered, requiring no external power supply.

Eye prosthesis is the first to restore sight lost to macular degeneration

In a Stanford Medicine-led clinical trial of a wireless retinal prosthesis, people with advanced macular degeneration regained enough vision to read books and subway signs.

Eye prosthesis is the first to restore sight lost to macular degeneration

In a Stanford Medicine-led clinical trial of a wireless retinal prosthesis, people with advanced macular degeneration regained enough vision to read books and subway signs.