title: The ophthalmoscope in the lifetime of Hermann von Helmholtz.
authors.affiliation: 1 Brookfield Park, London NW5 1ES, England. rkeeler@freenetname.co.uk
authors.forename: C Richard
authors.initials: CR
authors.lastname: Keeler
mesh_terms: D005858:Germany; D049672:History, 19th Century; D009885:Ophthalmology / Q000266:history; D019721:Ophthalmoscopes / Q000266:history*; D009887:Ophthalmoscopy / Q000266:history