To use all functions of this page, please activate cookies in your browser.
With an accout for my.bionity.com you can always see everything at a glance – and you can configure your own website and individual newsletter.
- My watch list
- My saved searches
- My saved topics
- My newsletter
Horizontal Eccentricity refers to the horizontal axis, measured in degrees, along the visual field. The blind spot is defined along this horizontal axis.
Additional recommended knowledge
The blind spot starts at a certain eccentric angle (temporal), and finishes at a certain other angle further out from the centre of fixation (fovea). These are the two angles you are calculating. (For the size of the blind spot you have to take the difference between ArcTan (s/d1) - ArcTan (s/d2): d1 being the distance from the observed surface where your scotoma starts; d2 where it ends; and s being the difference betwixt the two.)
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Horizontal_eccentricity". A list of authors is available in Wikipedia.|