World's First Implantable Muscle-Nerve Stimulator for Congenital Nystagmus Completes First Implant and Activation After Approval

The world's first muscle-nerve electrical stimulator for congenital nystagmus, developed by Wang Lejin's team at Peking University People's Hospital, has completed its first patient implantation and activation after regulatory approval. The device was approved on March 13, 2026 through the NMPA's green channel for Class III innovative medical devices. Trials of 10 feasibility and 61 confirmatory subjects showed foveation time increased several-fold, nystagmus amplitude and frequency fell markedly, and visual quality and quality of life improved.