[George Mayerle eye test chart]: [negative image]
- Collection:
- Images from the History of Medicine (IHM)
- Author(s):
- Mayerle, George.
- Publication:
- [San Francisco] : Schmidt Litho Co., c1907
- Language(s):
- English
- Format:
- Still image
- Subject(s):
- Vision Tests
- Genre(s):
- Pictorial Work
- Abstract:
- George Mayerle's eye test chart ... "combined four subjective tests done during an eye examination. Running through the middle of the chart, the seven vertical panels test for acuity of vision with characters in the Roman alphabet (for English, German, and other European readers) and also in Japanese, Chinese, Russian, and Hebrew. A panel in the center replaces the alphabetic characters with symbols for children and adults who were illiterate or who could not read any of the other writing systems offered. Directly above the center panel is a version of the radiant dial that tests for astigmatism. On either side of that are lines that test the muscular strength of the eyes. Finally, across the bottom, boxes test for color vision, a feature intended especially (according to one advertisement) for those working on railroads and steamboats."-- Hidden treasure.
- Copyright:
- The National Library of Medicine believes this item to be in the public domain. (More information)
- Related Title(s):
- Hidden treasure
- Extent:
- 1 print : 56 x 70 cm.
- Technique:
- lithograph, color
- NLM Unique ID:
- 101573841 (See catalog record)
- NLM Image ID:
- C06230
- OCLC no.:
- 767854132
- Permanent Link:
- http://resource.nlm.nih.gov/101573841