I don't know much about Schwartz but if you got eyefloaters and you found them intolerant, it's such a coincidence that I had them before and conducted Floater Only Vitrectomy for 2 eyes and my eyefloaters disappeared almost completely. So it's not a very big deal. I was not suffering from eyefloaters bc of usages of thiamines, and they were caused by my abuses of eyes. BTW, if you found your eyes dried easily, plz do a medical examination, otherwise I can't assure if it will cause more severe issues. It's like you already got xerophthalmia.