Longer wavelengths pass through human body have systemic impact improves vision(nature.com)
nature.com
Longer wavelengths pass through human body have systemic impact improves vision
https://www.nature.com/articles/s41598-025-09785-3
4 comments
Yet again we're back to balancing vitamin D and effects like these on vision, against skin cancer and cataract risk.
I had good eyesight at the time so never knew how effective the exercises were but I always felt better after doing them.