Optical Coherence Tomography Angiography in Glaucoma Care

Current Eye Research
Sunee Chansangpetch, Shan C Lin

Abstract

To provide the reader with information on the principal techniques of optical coherence tomography angiography (OCTA); the current literature on OCTA reproducibility; its applications to glaucoma detection and monitoring of progression; and the role of OCTA in the assessment of the vascular component in glaucoma pathogenesis. A literature review of the pertinent publications for the OCTA in relation to the development, techniques, and its use in glaucoma was carried out. Rapid improvements in optical coherence tomography (OCT) technology have allowed for enhancement of both image resolution and scanning speed, and the development of vascular assessment modality. OCTA is the non-invasive in vivo imaging of the vasculature located within the retina and optic nerve head area. The principle of OCTA is to use the variations in OCT signals caused by moving particles as the contrast mechanism for imaging of flow. Several algorithms which aim to maximize the contrast signal and minimize the noise have been developed including the phase-based techniques, intensity-based techniques (e.g., split-spectrum amplitude decorrelation angiography (SSADA)), and complex-based techniques (e.g., optical microangiography (OMAG)). With its reliable te...Continue Reading

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Citations

Sep 8, 2018·Clinical & Experimental Optometry : Journal of the Australian Optometrical Association·Brad Fortune
Dec 12, 2018·Clinical & Experimental Optometry : Journal of the Australian Optometrical Association·Jacqueline ChuaLeopold Schmetterer
Jun 4, 2019·Seminars in Ophthalmology·Astrid C Werner, Lucy Q Shen
Jun 14, 2020·Acta Ophthalmologica·Rei SakataUNKNOWN for Lower Normal Pressure Glaucoma Study Members in Japan Glaucoma Society
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