title: Helmholtzian accommodation.
authors.forename: Ronald A
authors.initials: RA
authors.lastname: Schachar
mesh_terms: D000065:Accommodation, Ocular / Q000502:physiology*; D002924:Ciliary Body / Q000502:physiology; D049672:History, 19th Century; D006801:Humans; D007908:Lens, Crystalline / Q000502:physiology; D008022:Ligaments / Q000502:physiology; D009130:Muscle, Smooth / Q000502:physiology; D009885:Ophthalmology / Q000266:history