Contacts let you see in the dark with your eyes closed

Phys.org: Infrared contact lenses allow people to see in the dark, even with their eyes closed

Infrared Contact Lenses Allow People To See In the Dark, Even With Eyes Closed

New contact lenses give people infrared vision — even with their eyes shut. Sci-fi-style technology uses nanoparticles to convert infrared light into visible light that humans can see.