I have come across a couple products of interest that are reputed to be successful in healing the eyes :1) CAN-C https://www.can-c.net/ and oculotropic PMG https://pinestreetclinic.com/products/standardprocess-oculotrophin-pmg-6075
I have not been able to find these products here and was wondering if there would be any reason to restrict their importation when going through aduanas .