Only three identifications (transitional endoplasmic reticulum ATPase, neurofilament light polypeptide and haemoglobin subunit alpha) were consistent with those reported in CSF samples from neuromyelitis optica (Bai et al. 2009) and optic neuritis (Olesen et al. 2019) and in tear samples from patients with dry eye disease (Jung et al. 2017). This evidence concerns the gene VCP and optic neuritis.