Wikimedia Commons

File:Test type to test eyesight, England, 1920-1960 Wellcome L0058205.jpg

Original file ‎(2,807 × 3,504 pixels, file size: 1,012 KB, MIME type: image/jpeg)

Captions

Captions

Add a one-line explanation of what this file represents

Summary

edit
Test type to test eyesight, England, 1920-1960
Title
Test type to test eyesight, England, 1920-1960
Description

Back lit for a clearer view, this display is a chart of letters used by an optician to test a person’s sight at various distances. Such charts are perhaps the most iconic objects in sight testing. A patient with good vision should be able to read the letters at a distance of six metres. The original sight charts were developed in the 1850s by Dutch ophthalmologist Hermann Snellen (1834-1908). The letters, from largest to smallest, are all a precise shape and size. Such charts are still commonly used.

maker: Unknown maker

Place made: England, United Kingdom

Medical Photographic Library
Keywords: snellen test types
Credit line

This file comes from Wellcome Images, a website operated by Wellcome Trust, a global charitable foundation based in the United Kingdom. Refer to Wellcome blog post (archive).
This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.

References
  • Library reference: Science Museum A627002
  • Photo number: L0058205
Source/Photographer

https://wellcomeimages.org/indexplus/obf_images/a7/2b/0849fc0b2e17e0ffde773a97a377.jpg

Licensing

edit
w:en:Creative Commons
attribution
This file is licensed under the Creative Commons Attribution 4.0 International license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current12:36, 17 October 2014Thumbnail for version as of 12:36, 17 October 20142,807 × 3,504 (1,012 KB)Fæ (talk | contribs)=={{int:filedesc}}== {{Artwork |artist = |author = |title = Test type to test eyesight, England, 1920-1960 |description = Back lit for a clearer view, this display is a chart of letters used by an optician to...

You cannot overwrite this file.

Metadata

This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.

Retrieved from "https://commons.wikimedia.org/w/index.php?title=File:Test_type_to_test_eyesight,_England,_1920-1960_Wellcome_L0058205.jpg&oldid=737231426"