Preprint Review Version 1 Preserved in Portico This version is not peer-reviewed

Optical Coherence Tomography Angiography (OCTA): A Review of the Current Literature

Ahmed Javed
,
Aishwarya Khanna
,
Eleanor Palmer
ORCID logo ,
Craig Wilde
,
Anwar Zaman
,
Gavin Orr
,
Dharmalingam Kumudhan
,
Arun Lakshmanan
,
Georgios D Panos
* ORCID logo
Version 1 : Received: 2 February 2023 / Approved: 8 February 2023 / Online: 8 February 2023 (11:28:28 CET)

How to cite: Javed, A.; Khanna, A.; Palmer, E.; Wilde, C.; Zaman, A.; Orr, G.; Kumudhan, D.; Lakshmanan, A.; Panos, G.D. Optical Coherence Tomography Angiography (OCTA): A Review of the Current Literature. Preprints 2023, 2023020147. https://doi.org/10.20944/preprints202302.0147.v1 Javed, A.; Khanna, A.; Palmer, E.; Wilde, C.; Zaman, A.; Orr, G.; Kumudhan, D.; Lakshmanan, A.; Panos, G.D. Optical Coherence Tomography Angiography (OCTA): A Review of the Current Literature. Preprints 2023, 2023020147. https://doi.org/10.20944/preprints202302.0147.v1

Abstract

OCTA is an imaging modality used in the assessment of the retinal vasculature. It operates on the principle of coherence tomography used in standard OCT with the addition of delineating the retinal vascular. This provides a modern non-invasive retinal vascular imaging method compared to conventional dye-based imaging. High quality depth resolution of the superficial and deep capillary networks is possible on OCTA whereas this was not possible prior. OCTA may be limited by image quality degradation from factors such as motion artefact or media opacities, and therefore may not be the investigation of choice for all patient groups. There are multiple potential clinical applications for OCTA in retinal and choroidal vascular disease. Ongoing research is necessary to substantiate the more widespread use of OCTA due to its significant cost burden compared to current modalities.

Keywords

Ophthalmic imaging; Optical coherence tomography; Age-related macular degeneration; Glaucoma; Retinal conditions

Subject

Medicine and Pharmacology, Ophthalmology

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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