title: 18th century eye testing spectacles.
authors.forename: P H
authors.initials: PH
authors.lastname: Starling
mesh_terms: D002170:Canada; D005139:Eyeglasses / Q000266:history*; D049672:History, 19th Century; D006801:Humans; D014787:Vision Tests / Q000266:history* / Q000295:instrumentation