Brain-Computer Interface Vision Restoration System NeuroSight Completes First Human Implant: Patient Blind for 12 Years Sees Outlines Again
NeuroSight uses a microelectrode array implanted in the visual cortex to directly stimulate brain visual areas, restoring low-resolution vision for patients blinded by retinal degeneration, with the first subject able to recognize object outlines and faces.
In January 2029, the Netherlands Institute for Neuroscience reported in the New England Journal of Medicine the first human implant results of the NeuroSight brain-computer interface vision restoration system. A 58-year-old woman who had been blind for 12 years due to retinitis pigmentosa successfully regained low-resolution vision after receiving the NeuroSight implant.
NeuroSight's hardware includes a microelectrode array implanted in the primary visual cortex containing 1,024 electrode points, along with smart glasses equipped with a camera. Visual information captured by the camera is converted to electrical signal patterns by an external processor and wirelessly transmitted to the implanted electrode array, directly stimulating visual neurons in the brain.
After 4 weeks of adaptive training, the patient could recognize outlines of everyday objects, distinguishing basic shapes like doors, windows, tables, and chairs. In controlled experimental settings, her facial outline recognition accuracy reached 78%. While the restored visual resolution is far below normal vision (equivalent to approximately 20x20 pixel images), for a patient blind for over a decade, this means regaining basic spatial awareness.
The NeuroSight team plans to complete 10 implant surgeries in 2029 and progressively increase electrode density to improve visual resolution. The next version's target is to raise resolution to 60x60 pixels, enabling patients to read large text.
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