Treating Blindness With Light (and Gene Therapy) | SciShow News

The video discusses a groundbreaking study where a 58-year-old participant regained partial sight using gene therapy and optogenetics. The study, published in Nature Medicine, involved injecting a viral vector carrying the opsin gene into the participant's eye, making retinal cells light-sensitive. The patient learned to use special goggles to interpret visual information, eventually recognizing objects. The video also covers a separate study in Nature Geoscience, revealing high mercury levels in Greenland's meltwater, potentially impacting health and economy due to its toxicity.

What new insight or understanding did you gain from this video?