{
  "id": 12713930,
  "title": "Optogenetic therapy shows early signs of improving vision in inherited blindness",
  "url": "https://urgent.news/2026/10/07/optogenetic-therapy-shows-early-signs-of-improving-vision-in",
  "topic": "health",
  "section": "Health & Medicine",
  "published": "2026-10-07T21:00:17.000Z",
  "source": {
    "name": "Medical Xpress",
    "slug": "medical-xpress",
    "url": "https://medicalxpress.com/news/2026-10-optogenetic-therapy-early-vision-inherited.html"
  },
  "original_language": "en",
  "account": "Scientists have made progress in restoring vision for people with certain inherited forms of blindness through a new optogenetic therapy. The study, published in the New England Journal of Medicine, involved 10 patients with advanced retinitis pigmentosa, a condition that destroys light-sensing cells in the retina. Retinitis pigmentosa affects over 1.5 million people worldwide and can lead to severe vision loss or blindness. Unlike many other tissues in the body, the retina has limited ability to repair itself due to being part of the central nervous system. In this study, researchers at the University of Pittsburgh School of Medicine and collaborators administered an experimental treatment that combined optogenetics with a visual stimulation device. The treatment successfully improved visual function in some participants, although it did not restore normal vision or reading ability. The researchers found that seven out of ten participants had improved light sensitivity, and six had clinically meaningful gains in visual function. The optogenetic treatment involved injecting a gene that produces a light-sensing protein called ChrimsonR into surviving retinal ganglion cells. This protein, activated by specific wavelengths of light, was then modulated by a visual prosthetic system. Participants wore specialized goggles with a camera that sent visual information to a portable processor, which converted the information into patterns of light. These patterns were projected back into the eye, activating the modified retinal cells. The researchers also tested whether visual information was reaching the brain using electroencephalography (EEG). The results demonstrated that visual signals reached and were processed by the visual cortex in some participants, even in those with profound vision loss. The study highlights the potential of optogenetic therapy as a complementary strategy to restore vision in patients with end-stage retinal disease, including those with other blinding diseases where the light-sensing cells have been lost but other retinal cells remain viable.",
  "summary": "Scientists have taken another important step toward restoring vision in people with certain inherited forms of blindness. In a study published in the New England Journal of Medicine, researchers at the University of Pittsburgh School of Medicine and international collaborators showed that an experimental, optogenetics-based treatment was safely administered to 10 patients and improved visual…",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}