What is swept source OCT?
Swept-source OCT (SS-OCT; DRI-OCT, Topcon Japan) is the latest milestone in retinal and choroidal imaging. Simultaneous high-quality visualization of the vitreous, retina, and choroid is possible. Choroidal layers that are hardly distinguishable in conventional SD-OCT become visible.
What is swept source technology?
optical coher- ence tomography (SS-OCT), “swept source” refers to the type of laser incorporated into the device. Although the swept-source laser has a wavelength centered at approximately 1 μm, the laser actually changes, because it sweeps across a narrow band of wavelengths with each scan.
What is an OCT assessment?
Optical coherence tomography (OCT) is a non-invasive imaging test. OCT uses light waves to take cross-section pictures of your retina. With OCT, your ophthalmologist can see each of the retina’s distinctive layers. This allows your ophthalmologist to map and measure their thickness.
What will appear hyper reflective on an OCT scan?
The hyperreflective foci or dots are two different terms used to call abnormal hyperreflective elements detected in OCT scans. The HRDs are scattered, punctiform, small in size, mainly located in the outer retinal layers and/or around pockets of fluid accumulation and are typically not confluent [3].
What is a swept laser?
A type of laser in which the output wavelength is adjustable over a wide range of wavelengths. The laser is focused on a particular wavelength and is “swept” over a range of wavelengths.
What is the difference between swept-source and spectral domain OCT?
The swept-source light source has a wavelength centered at ~1 µm that sweeps across a narrow band of wavelengths, while spectral-domain devices utilize a broadband light source. The laser frequency sweep labels different time delays, which are then detected by interference.
Does Medicare cover OCT scans?
Medicare item 11219: Optical coherence tomography (OCT) An OCT scan shows the cross-sectional layers of the retina and is initially performed to confirm a diagnosis. OCT scans for ongoing monitoring of disease are not currently reimbursed by Medicare.
Are OCT scans necessary?
Why do I need an OCT scan? OCT scans are recommended for people aged 25 or over, who want to know more about their eye health, or those who have diabetes, glaucoma, or have family history of eye disease. Even if your vision and eye health are perfectly fine, we still recommend an OCT scan with every eye test.
What does macular degeneration look like on OCT?
Signs include loss of foveal reflex, bull’s eye maculopathy, and whorl-like corneal changes. OCT findings can show loss of the external limiting membrane, disruption of the outer ellipsoid zone (IS/OS junctions), perifoveal thinning of the outer nuclear layer, RPE damage, and “flying saucer sign.”
What is Time Domain OCT?
Traditional optical coherence tomography (OCT) is a time domain OCT (TD-OCT),1, 2, 3, 4 where depth informations of the retina are obtained after a longitudinal translation in time of a reference arm. Good reproducibility of retinal thickness measurements by Stratus OCT (Carl Zeiss Meditec, USA) has been shown.
Which is DRI Oct Triton swept source technology?
Topcon is the first in the world to introduce a combined anterior & posterior Swept Source OCT, the DRI OCT Triton. The DRI OCT Triton incorporates full color high resolution fundus photography and FA & FAF imaging. FA & FAF imaging is a factory option. Swept Source technology & 1,050nm wave length
What’s the new in OCT technology at Topcon?
More recently, Topcon rolled out its newest SD-OCT system: the 3D OCT-1 Maestro. With a single touch, it automatically scans both eyes and produces an SD-OCT scan and true-color fundus image simultaneously. Auto-alignment, auto-focus, and auto-shoot ensure that the whole process is done fast and correctly.
Which is the world’s first swept source OCT technology?
The DRI OCT Triton combines the world’s first swept source OCT technology with multimodal fundus imaging. Note ： Not all products shown on this site are offered in every market. Product features may vary by country and are subject to change.
Can a DRI Oct Triton be used for anterior imaging?
The Topcon DRI OCT Triton can be extended to include anterior imaging, making the Swept Source a versatile diagnosis tool for both anterior and posterior imaging. The anterior attachment ensures sharp images, even in the periphery of the cornea and in depth images of the anterior chamber.