Talk:Eye chart

Wiki Education Foundation-supported course assignment
This article was the subject of a Wiki Education Foundation-supported course assignment, between 7 September 2021 and 14 December 2021. Further details are available on the course page. Student editor(s): Alexcurbeloo.

Above undated message substituted from Template:Dashboard.wikiedu.org assignment by PrimeBOT (talk) 21:05, 16 January 2022 (UTC)

note
"It has been suggested that Optotype be merged into this article or section. Proposed since May 2010." I agree with this. Optotype is more a definition than a topic.Bstephens393 (talk) 17:36, 7 June 2011 (UTC)

File:Snellen chart.svg
1. The ".svg" format is not as universal as would be ".tif" or ".pdf" or even ".jpg" (which is not really appropriate for this image). For instance, Windows XP Picture & Fax viewer and IRFAN do not display this format.

2. Since the whole point of the image is size, it should be self-checking. For instance, a border could be added with fine print saying the border size is A x B mm, or a legend could give the height of the largest E in mm. Most formats (including svg) do contain the original resolution, so display software can say "100% view", but printing frequently shrinks or expands images.23.24.37.125 (talk) 18:12, 25 June 2020 (UTC)