logmar chart
DESCRIPTION
logmar chartTRANSCRIPT
![Page 1: Logmar Chart](https://reader038.vdocument.in/reader038/viewer/2022100421/55cf9cee550346d033ab944a/html5/thumbnails/1.jpg)
Logmar chart
![Page 2: Logmar Chart](https://reader038.vdocument.in/reader038/viewer/2022100421/55cf9cee550346d033ab944a/html5/thumbnails/2.jpg)
MAR=Minimum Angle of Resolution -the angle subtended within the eye by a letter
How does LogMAR relate to Snellen? Letter on 6/6 line subtends an angle of 5 seconds of
arc; each limb subtends 1 second of arc Minimum Angle of Resolution for a 6/6 letter is 1
second of arc.-the log of the MAR for a 6/6 size letter is 0
Scoring LogMAR Each letter has a score value of 0.02 log units;5 letters
per line Each line represents a change of 0.1 log units Final score based precisely on total of all letters read
![Page 3: Logmar Chart](https://reader038.vdocument.in/reader038/viewer/2022100421/55cf9cee550346d033ab944a/html5/thumbnails/3.jpg)
LogMAR / Snellen equivalent results
![Page 4: Logmar Chart](https://reader038.vdocument.in/reader038/viewer/2022100421/55cf9cee550346d033ab944a/html5/thumbnails/4.jpg)
![Page 5: Logmar Chart](https://reader038.vdocument.in/reader038/viewer/2022100421/55cf9cee550346d033ab944a/html5/thumbnails/5.jpg)
![Page 6: Logmar Chart](https://reader038.vdocument.in/reader038/viewer/2022100421/55cf9cee550346d033ab944a/html5/thumbnails/6.jpg)
Thank you