Chemiclean is erythromycin, roughly the same as Maracyn, and the stuff your doctor prescribes to you for strep.
While I don’t know the effects of getting it in your eyes, I do know there are all sorts of bacteria that live in skimmate, plus I know that palytoxin is very real.
You can draw a line from unhappy tank from an antibiotic to unhappy palys to palytoxin to your eyes, but I wouldn’t consider that to be the fault of the Chemiclean.
Not saying you aren’t going through something I’d just as soon never experience, but I think the warning may not be centered on the right issue.
According to Boyd Enterprises it is not Erythromycin. They have stated it many times. Some red slime removers are erythromycin though.