title: Eyeglasses and concave lenses in fifteenth-century Florence and Milan: new documents.
authors.forename: V
authors.initials: V
authors.lastname: Ilardi
mesh_terms: D049692:History, Early Modern 1451-1600; D049711:History, Modern 1601-; D007558:Italy; D009885:Ophthalmology / Q000266:history*