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Fig. 5 | International Journal of Retina and Vitreous

Fig. 5

From: A practical guide to optical coherence tomography angiography interpretation

Fig. 5

Choroidal vessels below atrophic areas. ad Images of a patient with advanced AMD and geographic atrophy. Atrophy causes RPE and choriocapillaris disruption. a En face choriocapillaris angiogram shows displaced choroidal vessels mimicking well-formed vessels seen in macular neovascularization. b En face choriocapillaris structural image shows increased signal intensity in atrophic area due to RPE disruption and increased signal penetration into the choroid. c B-scan through atrophic area shows increased choroidal flow detection and upward displacement of choroidal vasculature below the atrophic area (white arrow). d B-scan without flow overlay shows choroidal hypertransmission (white arrow), a known OCT landmark for geographic atrophy

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