Scientific page about corneal neuropathic pain.
I found this information 2 weeks ago after dealing with severe photophobia in one eye for 15 months. So far I've tried the Vitamin B12 eye drops, but it hurts like hell when I drop them in, so I am not continuing the treatment as it might be causing more harm than good. Something called a compound pharmacy can craft them from scratch as a custom order, or you can buy some online. The ones I was able to order living in Canada are called RenerVIX.