title: Vitamin A deficiency. Use non-invasive dark adaptometry to screen children and adolescents.
authors.forename: S A
authors.initials: SA
authors.lastname: Vernon
mesh_terms: D000293:Adolescent; D002648:Child; D003550:Cystic Fibrosis / Q000150:complications; D003623:Dark Adaptation; D006801:Humans; D014802:Vitamin A Deficiency / Q000175:diagnosis*