Advanced, dye-free imaging that maps the tiny blood vessels of the retina, allowing detailed vascular assessment without any injection.
OCTA is a newer form of OCT that visualises the retinal and choroidal blood vessels in three dimensions, without the need for any injected dye. It safely shows areas of poor blood flow and abnormal new vessels.
Because no dye is used, OCTA is quick, non-invasive and repeatable, making it ideal for tracking diabetic retinopathy and macular conditions over time.
OCTA stands for OCT Angiography, where OCT itself means Optical Coherence Tomography. It is an advanced scan that maps the tiny blood vessels of the retina without using any injected dye.
OCTA images the retinal blood vessels without any injection, while traditional fluorescein angiography (FFA) uses a dye injected into an arm vein. OCTA is quick and dye-free, though FFA is still preferred in certain situations where dye flow needs to be seen.
Yes. OCTA is painless, non-invasive and dye-free, so there is no injection and nothing touches your eye. You simply look at a target while the machine captures the images.
The scan is quick, usually taking only a few minutes. Because no dye is used, it is easy to repeat at follow-up visits to track changes over time.
Dye-based retinal imaging that reveals how blood is flowing through the retina, vital for diagnosing diabetic retinopathy, vein occlusions and macular disease.
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