Tool to understand the Monoyer Chart. The Monoyer Chart is the name given to an optometric test to measure visual acuity of a person in ophthalmology
Monoyer Chart - dCode
Tag(s) : Raw Data
dCode is free and its tools are a valuable help in games, maths, geocaching, puzzles and problems to solve every day!
A suggestion ? a feedback ? a bug ? an idea ? Write to dCode!
Monoyer Chart
Monoyer Chart
Image to print 
The test must be performed at a distance of 5m and the first row should be 7.3mm.
Answers to Questions (FAQ)
How the Monoyer Chart was created?
By taking the first letter of each line from the last line, the word obtained is MONOYER, then by taking the last letter of each line always from the penultimate line, the word obtained is FERDINAND, both its first name and last name.
To be exact, it is written Monoyer DM, and DM certainly means Doctor of Medicine.
The other letters of each size do not mean anything and do not have a particular pattern, they are probably randomly selected:
Example: MRTVFUENCXOZD, DLVATBKUERSN, RCYHOFMESPA, EXATZHDWN, YOELKSFDI, OXPHBZD, NLTAVR, OHSUE, MCF, ZU
Monoyer
M R T V F U E N C X O Z D
D L V A T B K U E R S N
R C Y H O F M E S P A
E X A T Z H D W N
Y O E L K S F D I
O X P H B Z D
N L T A V R
O H S U E
M C F
Z U
How to download the Monoyer Chart?
Here is a PDF file to download/print: here (link)
For a rigorous measurement, after printing on a 1:1 scale (on a format close to A2) the 10/10 line has a height of 7.3mm
What is the Monoyer Chart for?
The Monoyer chart (or Monoyer test) is used by opticians for testing visual acuity in patients with impaired eye.
However, this ophtalmologic table to print tends to be outdated and replaced by others like Snellen chart, or more recently by tests on screens, and possibly prescribe visual aids (glasses).
What is the distance of use of the Monoyer Chart?
The recommended distance for a Monoyer Chart is 5 meters.
Source code
dCode retains ownership of the "Monoyer Chart" source code. Except explicit open source licence (indicated Creative Commons / free), the "Monoyer Chart" algorithm, the applet or snippet (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, translator), or the "Monoyer Chart" functions (calculate, convert, solve, decrypt / encrypt, decipher / cipher, decode / encode, translate) written in any informatic language (Python, Java, PHP, C#, Javascript, Matlab, etc.) and all data download, script, or API access for "Monoyer Chart" are not public, same for offline use on PC, tablet, iPhone or Android !
The copy-paste of the page "Monoyer Chart" or any of its results, is allowed as long as you cite the online source
Reminder : dCode is free to use.
