Skip to main content
Fig. 3 | International Journal of Retina and Vitreous

Fig. 3

From: A practical guide to optical coherence tomography angiography interpretation

Fig. 3

OCTA slabs and corresponding segmentation boundaries. a Superficial retinal slab. This slab displays information for the internal limiting membrane, the ganglion cell layer and the inner plexiform layer. It is useful for FAZ area delineation in diabetic retinopathy. b Deep retinal slab. This slab displays information for the inner nuclear layer and the outer plexiform layer. Projection artifact removal was used to block signal from the superficial capillary plexus on this en face image. This slab may show the first signs of vascular loss in diabetic retinopathy. c Avascular slab. This slab displays information for the outer plexiform layer and the outer nuclear layer. Note that despite projection artifact removal remnants of overlying vessels are noted in this image. d Choriocapillaris slab. Along with the avascular slab, the choriocapillaris slab is important for detection of macular neovascularization in AMD. e Outer retinal choriocapillaris slab. This slab displays information for the outer plexiform layer, the outer nuclear layer and the choriocapillaris. It is useful as a screening tool for all types of macular neovascularization in AMD. f Choroid slab. Clear choroidal vessels are not visualized due to signal blockade from the RPE and overlying retinal layers

Back to article page
\