Concept
Vision Tests
Images
Catalogue
- Books
- Online
The determination of the necessity for wearing glasses / by D.B. St. John Roosa.
Roosa D. B. St. John (Daniel Bennett St. John), 1838-1908.Date: 1887
- Books
- Online
Manual of instructions for the guidance of army surgeons in testing the range and quality of vision of recruits and in distinguishing the causes of defective vision in soldiers / by T. Longmore.
Date: 1875
- Archives and manuscripts
- Online
M0010191: Professor Snellen's Standard Test letters for testing vision
Date: 19 August 1947Reference: WT/D/1/20/1/89/90Part of: Wellcome Trust Corporate Archive