TYB
Somebody should let this dude know about C60 Purple Power.
Has a pretty good reputation for helping with eye issues like macular degeneration. Email them for links to info on the topic. Good people to deal with. Only drawback is it's EXPENSIVE!
I've read it can be used as eye drops. You take it internally on a daily basis. Several doses per day. In his case I'd drink 8-16 ounces per day for the first three days then cut it way back. Might get the shits with all that oil intake. Do some reading about it. The owner of C60 Purple Power cured himself of macular degeneration. He probably makes the best quality C60 out there. It's the worlds most powerful antioxident by far.
If he contacts the company they can set him up with a wholesale account if he's willing to buy full cases at a time. Still expensive with the wholesale price but cheaper than retail.
https://shopc60.com/