In the NEJM-published PIONEER trial, an algae-derived light-sensing gene plus amber-light goggles improved light sensitivity in 6 of 10 people with late-stage retinitis pigmentosa, and 4 of 8 got better at finding objects. Here is how optogenetics works.

The 2026 Nobel Prize in Physiology or Medicine went to Karl Deisseroth, Peter Hegemann and Georg Nagel for light-gated ion channels and optogenetics. Here's how an algae gene became a tool for neuroscience, and why the first optogenetic gene therapy for blindness is now under FDA review.

Imagine switching brain circuits on and off using only magnetic fields. Researchers have just developed a cutting-edge gene therapy that does exactly that—without any implants or invasive surgery. Traditionally, methods like optogenetics required fiber-optic implants to control neurons with light. Recently, a team from Weill Cornell Medicine, Rockefeller University, and the Icahn School of Medicine has created a simpler, non-invasive solution. This new approach, called "magne