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Like with digital retinal photography, it’s really useful for your optician to have a baseline image on file, so they can refer to it every time you see us – even if your vision and eye health are perfectly fine.
So the next time you come in for an eye test, your optician might spot even the tiniest change in the eye’s structures that could indicate the early signs of an eye health condition like glaucoma, diabetic retinopathy and macular degeneration before you have any symptoms.
This means that conditions like these can be managed before they get worse and can help prevent potential sight loss.
An optical coherence tomography scan (commonly referred to as an OCT scan) helps us to view the health of your eyes in greater detail, by allowing us to see what’s going on beneath the surface of the eye.
OCT scanning is particularly useful for detecting potentially sight-threatening conditions, like macular degeneration and glaucoma, that generally don’t have any symptoms until they start to have an impact on your vision.
The scan creates a cross-section view of your eye that shows us the layers and structures inside that wasn’t always possible to see with traditional imaging methods.
Imagine it like a cake – we can see the top of the cake and the icing, but the image produced from an OCT scan slices the cake in half and turns it on its side so we can see all the layers inside.
Our opticians can then map out and measure the thickness of these layers to get a clear idea of your eye health.
Traditional Fundus Test Image
OCT Scan Image
Taking just a few seconds, an OCT scan uses light to take over 1,000 images of the back of your eye and beyond, looking right back to the optic nerve.
A layered image is created that gives us an incredibly accurate picture of your eye and its structures, allowing us to check your eye health. The images will then be stored so we can note changes over time.