Dear Editor-in-Chief: I enthusiastically studied Parviz et al. article (1). It was an exceptional description of the possibility that great Persian and Andalusian physicians like Haly Abbas and Ibn Rushd might be familiar with optic neuritis and its relationship with paresthesia. This has not only been significant in medical his-tory and proves the role of Persian traditional medicine in promoting science but also presents the hypothesis that in the old Persia, multiple scle-rosis (MS) (the two common symptoms of which are optic neuritis and paresthesia) was probably prevalent to the extent that physicians were famil-iar with these cases and even described them.
The author of the present study is aware that this is a big claim and proving it would need more pre-cise review and inspection of Persian traditional medical texts which should be scrutinized by med-ical history researchers…