Snellen

[n] - Dutch ophthalmologist who introduced the Snellen chart to study visual acuity (1834-1908)
Found on http://www.webdictionary.co.uk/definition.php?query=Snellen

Snellen

a system for measuring the accuity of focusing using eye charts. The result is expressed as a fraction eg 20/20
Found on http://www.trayner.co.uk/Info/Glossary.html

Snellen

Hermann, Dutch ophthalmologist, 1834-1908. ... See: Snellen's test types, Snellen's sign. ... (05 Mar 2000) ...
Found on http://www.encyclo.co.uk/local/20973

Snellen

Hermann Snellen noun Dutch ophthalmologist who introduced the Snellen chart to study visual acuity (1834-1908)
Found on http://wordnetweb.princeton.edu/perl/webwn?s=Snellen

Snellen

Type: Term Pronunciation: snel′ĕn Definitions: 1. Hermann, Dutch ophthalmologist, 1834-1908. See: Snellen sign, Snellen test types
Found on http://www.medilexicon.com/medicaldictionary.php?t=82603

snellen

Unit expressing the visual power of the eye
Found on http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0025957.html
No exact match found