This is the PhotonUVC device, which the makers say will treat most eye infections in 5 seconds in practice, without the need for antimicrobials, thereby eliminating the difficulty of selecting the right anti-microbial and eliminating problems with client compliance.

More information and links to studies available here: https://www.vetsurgeon.org/b/veterinary-news/posts/photon-therapeutics-taking-orders-for-new-uvc-treatment-for-corneal-infections

https://photon-therapeutics.com/