Determination of Ischemia Onset Based on Automatically Generated Spectralis SD-OCT Values in Acute Central Retinal Artery Occlusion

Figure 4

Automatic versus manual determination of retinal thickness representative optical coherence tomography (OCT) scan for the affected eye (a) and the unaffected eye (b). The scan in the unaffected eye is diagonal. Measurements are performed manually (orange line) and automatically (green line). The manual measurement equals 466 µm (a) and 335 µm (b), while the automatic is 474 µm (a) and 377 µm (b). The absolute retinal thickness increase (ARTI) is therefore different: 1.26 in the manual measurement and 1.39 in the automatic.

(a)

(b)