Experimental gene-and-goggle therapy helps some blind patients regain partial sight
What Happened
A small clinical trial involving 10 people with advanced retinitis pigmentosa tested an experimental treatment combining a one-time gene therapy injection with special light-stimulating goggles. Seven participants became more sensitive to light, while four of eight who completed behavioural testing improved at tasks such as detecting or locating objects.
Key Takeaways
The treatment uses optogenetics to make surviving retinal cells respond to light, while the goggles convert visual information into amber-light patterns that stimulate those cells. It did not restore normal eyesight, with participants unable to read text or recognise faces, but the results provide proof-of-concept that limited visual function can be restored in some people with advanced inherited blindness.