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Fig. 1 | BMC Ophthalmology

Fig. 1

From: Grading of macular perfusion in retinal vein occlusion using en-face swept-source optical coherence tomography angiography: a retrospective observational case series

Fig. 1

Grading of SCP ischemia. a. Color fundus photo of the left eye of a 61-year old male patient with supero-temporal major BRVO. b. Corresponding en-face SS-OCTA image of the SCP in a 4.5 × 4.5 mm field. The image is divided by horizontal and vertical crosshairs into 4 quadrants (Q1-Q4). The superior quadrants (Q1-Q2) show flow-voids due to capillary loss (asterisks). Note the dilated shunt vessels straddling the horizontal raphe at the temporal edge of the perifoveal capillary arcade (white arrow-head). c. Corresponding flow density map. The percentage area occupied by blood vessels is expressed in numeric values. d, e. En-face SS-OCTA image of the SCP and the corresponding flow density map displayed in a 3 × 3 mm field for higher definition

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BMC Ophthalmology

ISSN: 1471-2415

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