File:Snellen chart.svg

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

Original file(SVG file, nominally 1,303 × 1,624 pixels, file size: 112 KB)

Structured data

Captions

Add a one-line explanation of what this file represents

Summary[edit]

Description
English: A typical Snellen chart. Originally developed by Dutch ophthalmologist Herman Snellen in 1862, to estimate visual acuity. When printed out at this size, the E on line one will be 88.7 mm (3.5 inches) tall and when viewed at a distance of 20 ft (= 609.6 centimeters, or 6.09600 meters), you can estimate your eyesight based on the smallest line you can read.
Date , 03:34 (UTC)
Source Own work by uploader, Based on the public domain document: [1]
Author Jeff Dahl

Licensing[edit]

I, the copyright holder of this work, hereby publish it under the following licenses:
w:en:Creative Commons

attribution share alike

This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported 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.
  • share alike – If you alter, transform, or build upon this work, you may distribute the resulting work only under the same or similar license to this one.

GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.
You may select the license of your choice.

File history

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

Date/TimeThumbnailDimensionsUserComment
current03:58, 23 June 2008Thumbnail for version as of 03:58, 23 June 20081,303 × 1,624 (112 KB)Jeff Dahl (talk | contribs)
03:34, 23 June 2008Thumbnail for version as of 03:34, 23 June 20081,304 × 1,716 (111 KB)Jeff Dahl (talk | contribs){{Information |Description={{en|1=. When printed out at this size, the E on line one will be 88.7 mm tall and when viewed at a distance of 20 ft, you can estimate your eyesight based on the smallest line you can read.}} |Source=Own work by uploader, Based
  • You cannot overwrite this file.

The following 2 pages uses this file:

File usage on other wikis

Metadata