User @mhb posted this article which discusses the study: https://www.sciencedaily.com/releases/2021/11/211124154118.h...
From that article:
> Home-based affordable eye therapies
> With a paucity of affordable deep red-light eye-therapies available, Professor Jeffery has been working for no commercial gain with Planet Lighting UK, a small company in Wales and others, with the aim of producing 670nm infra-red eye ware at an affordable cost, in contrast to some other LED devices designed to improve vision available in the US for over $20,000."
That company has already released a product: https://www.eye-power.co.uk/
US$72 GB£45.00