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

Figure 5

Signs of acute retinal ischemia in optical coherence tomography. This figure displays an optical coherence tomography (OCT) scan of a branch retinal artery occlusion with a time of symptom onset <2 hours. On the left side of the fovea, the retinal perfusion is intact, and the structure of the retinal layers is physiological. On the right side, where the branch retinal artery occlusion occurred, signs of ischemia can be seen in the scan. The white curly brace shows the hyperreflectivity in the inner layers of the retina. Consequently, the outer retinal layers and the retinal pigment epithelium show a hyporeflectivity—pointed out by the black curly brace. The black arrow points to the prominent middle-limiting membrane sign (pMLM). The white arrow symbolizes the thickening of the retina in comparison to the nonaffected part of the retina on the left side.