Optical Coherence Tomography Angiography for Anterior Segment Vasculature Imaging

Optical coherence tomography angiography and indocyanine green angiography for corneal vascularisation

“…Since current OCTA systems are optimised for the retina and optic disc, we had previously described a technique adapted to perform scans in the anterior segment for normal corneal and limbal vessels 14. As objective evaluation of corneal vascularisation is becoming increasingly important for its diagnosis and monitoring, new non-invasive imaging modalities are a welcome addition to our clinical practice 15.…”

Method for Angiographically Guided Fine-Needle Diathermy in the Treatment of Corneal Neovascularization

“…12,16,17 Optical coherence tomography (OCT) angiography may offer an additional complimentary approach, but at present, it is not able to distinguish between afferent and efferent vessels. [19][20][21] Although OCT angiography is likely to be a very useful adjunct, the current methods are limited in resolution to an axial and lateral resolution of approximately 5 to 8 mm and 20 to 20 mm 22 so that components of small vessels such as capillary loops may not be discernible. In addition, OCT relies on red blood cell movement [23][24][25] and is therefore dependent and influenced by cell number and velocity and 22 is therefore not sensitive to acellular flow, in particular leakage.…”

Advances in Optical Coherence Tomography Angiography

“…[59][60][61] Non-retinal ophthalmologic diseases including glaucoma and corneal neovascularization have also been assessed. [62][63][64] Reduction in optic nerve head peripapillary network perfusion may be detected even in early glaucoma.…”