
176 Image Analysis and Modeling in Ophthalmology
order to observe nerve damage. General OCT is an established medical imaging technique
that gained prominence because it entails no harmful radiation and does not need sample
preparation, so measurements can be done in vivo. Furthermore, this technique provides
instant imaging.
The working principle of OCT is based on optical coherence, whereby a beam emitting
from a coherent light source is split into two, so that one beam is reected by the tissue
to be imaged while the other is reected by a reference mirror. As such, the scattered
light from the tissue is removed. The interference of the re ...