In her latest video shared on her non-mukbang vlog channel, @v-tzuyang, YouTuber Tzuyang revealed a heartbreaking fact about her rare, incurable, degenerative disease. YouTuber Tzuyang | ENA When her production staff commented about her vision (and how “bad” it is), Tzuyang clarified that it has always been that way because of her condition: retinitis pigmentosa.…

