Xerophthalmia, also known as conjunctival xerosis, is related to hypercarotenemia and vitamin a deficiency, autosomal dominant and diffuse infiltrative lymphocytosis syndrome, and has symptoms including dacryops and dryness of eye. An important gene associated with Xerophthalmia is RHO (Rhodopsin), and among its related pathways/superpathways are Innate Immune System and T-cell activation SARS-CoV-2. The drugs Dipivefrin and Ophthalmic Solutions have been mentioned in the context of this disorder. Affiliated tissues include eye and liver, and related phenotypes are immune system and hematopoietic system