Meanings
Synonyms & antonyms
nounA chart bearing letters or other symbols, used to test visual acuity.
Similar
Also see
Origin
Named after the Dutch ophthalmologist Hermann Snellen, who developed the chart in 1862.
Full word history & related roots →Cite this entry
APA
Snellen chart. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Snellen%20chart
MLA
“Snellen chart.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Snellen%20chart. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “Snellen chart,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Snellen%20chart.
Source: Snellen chart on Wiktionary, CC BY-SA 4.0.