{"id":175399,"date":"2026-10-19T09:40:27","date_gmt":"2026-10-19T09:40:27","guid":{"rendered":"https:\/\/www.m3globalresearch.com\/blog\/?p=175399"},"modified":"2026-10-20T14:47:34","modified_gmt":"2026-10-20T14:47:34","slug":"optogenetic-therapy-restores-partial-vision-in-some-patients-with-retinitis-pigmentosa","status":"publish","type":"post","link":"https:\/\/www.m3globalresearch.com\/blog\/optogenetic-therapy-restores-partial-vision-in-some-patients-with-retinitis-pigmentosa\/","title":{"rendered":"Optogenetic Therapy Restores Partial Vision in Some Patients With Retinitis Pigmentosa"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"175399\" class=\"elementor elementor-175399\" data-elementor-settings=\"{&quot;ha_cmc_init_switcher&quot;:&quot;no&quot;}\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7b2c08d e-con e-atomic-element e-flexbox-base e-d693f31 \" data-id=\"7b2c08d\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"7b2c08d\">\n    \t\t<div class=\"elementor-element elementor-element-b12c334 elementor-widget elementor-widget-text-editor\" data-id=\"b12c334\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>An experimental treatment combining gene therapy with light-stimulating goggles has helped some patients with profound vision loss from retinitis pigmentosa detect and locate objects, according to a small clinical trial.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f241f77 elementor-widget elementor-widget-text-editor\" data-id=\"f241f77\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Retinitis pigmentosa comprises a group of inherited disorders in which genetic changes damage the retina\u2019s photoreceptors. Variants in more than 100 genes can cause the condition, complicating efforts to develop treatments for each genetic cause. The optogenetic approach bypasses this challenge by giving surviving nerve cells a new way to respond to light.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bcdb794 elementor-widget elementor-widget-text-editor\" data-id=\"bcdb794\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>In the trial, published in The New England Journal of Medicine, researchers enrolled 10 participants with profound vision loss in both eyes. Each received a single injection into their worse-seeing eye. A modified virus delivered instructions to produce a light-sensitive protein called ChrimsonR in retinal ganglion cells, which transmit visual signals to the brain.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c1081fb elementor-widget elementor-widget-text-editor\" data-id=\"c1081fb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Participants then used special goggles containing a camera that captures changes in brightness. A processor converts these changes into patterns of amber light projected onto the retina to activate the protein.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-05d7226 elementor-widget elementor-widget-text-editor\" data-id=\"05d7226\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Seven participants showed increased light sensitivity, ranging from approximately two-fold to 62-fold. Six reached at least a four-fold increase, which the researchers considered clinically meaningful. In object detection tests, four of eight participants consistently performed better with the goggles over sessions spanning roughly one to one and a half years.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0b60924 elementor-widget elementor-widget-text-editor\" data-id=\"0b60924\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Safety findings showed 34 eye-related adverse events among nine participants, mostly mild or moderate. Seven developed eye inflammation that resolved with treatment.<\/p><p>The researchers noted significant limitations. Participants still cannot recognise faces or read, and greater sensor sensitivity would be valuable. The trial was not randomised and had no control arm.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bb5aaf1 elementor-widget elementor-widget-text-editor\" data-id=\"bb5aaf1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Source: Sahel JA, Roska B et al. Optogenetic therapy for retinitis pigmentosa. The New England Journal of Medicine (2026).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\n<\/div>\n\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Optogenetic therapy combining gene injection and light-stimulating goggles restores partial vision in some patients with retinitis pigmentosa.<\/p>\n","protected":false},"author":11,"featured_media":175438,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_eb_attr":"","footnotes":""},"categories":[3200],"tags":[],"class_list":["post-175399","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-latest-medical-news"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.9 (Yoast SEO v28.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Optogenetic Therapy Restores Partial Vision in Some Patients With Retinitis Pigmentosa<\/title>\n<meta name=\"description\" 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