title: Systems of life. The eye and vision. 2.
authors.forename: A
authors.initials: A
authors.lastname: Roberts
mesh_terms: D005143:Eyelids / Q000033:anatomy & histology*; D006801:Humans; D007765:Lacrimal Apparatus / Q000033:anatomy & histology* / Q000502:physiology; D014785:Vision, Ocular / Q000502:physiology*