title: How the human eye focuses.
authors.affiliation: Rensselaer Polytechnic Institute.
authors.forename: J F
authors.initials: JF
authors.lastname: Koretz
authors.forename: G H
authors.initials: GH
authors.lastname: Handelman
mesh_terms: D000065:Accommodation, Ocular; D000375:Aging / Q000502:physiology; D005123:Eye / Q000033:anatomy & histology; D006801:Humans; D007908:Lens, Crystalline / Q000033:anatomy & histology / Q000502:physiology; D009799:Ocular Physiological Phenomena; D014785:Vision, Ocular / Q000502:physiology*