GoKawiilDoctors inject patient's own mitochondria into eyes to treat brain-bleed blindness
Researchers extracted mitochondria from a blind woman's leg muscles and injected them into the vitreous fluid of both eyes, after a February brain bleed had damaged her optic nerve and retina and eliminated her pupils' response to light. The procedure, described in an unreviewed preprint posted August 10, caused no inflammation or adverse effects and briefly restored some pupillary light response, though the effect faded within about four weeks and vision was not recovered.