GLOW IN THE DARK CONTACT LENSES AS DIABETIC RETINOPATHY TREATMENT

From Review of Cornea and Contact Lens:

"rod cells, as it turns out, consume about twice as much oxygen in the dark as they do in the light"

"The lenses provide the retinal rods with just enough light throughout the night to lower their oxygen consumption, and 'if we turn metabolism in the retina down, we should be able to prevent some of the damage that occurs'".