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OCT Offers High Speed, Strong Resolution in Retinal Imaging

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JOEL WILLIAMS, ASSOCIATE EDITOR
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Researchers at the University of Washington have modified the standard process of OCT (optical coherence tomography) to detect minute changes in response to light in individual photoreceptors in the living eye. The technique has potential in the testing of therapies such as stem cells or gene therapy to treat retinal disease. “Typically, retinal OCT systems are implemented by raster scanning a point of light across the retina. This provides excellent contrast, but at the cost of speed due to dual-axis scanning,” corresponding author Ramkumar Sabesan, assistant research...Read full article

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    Published: September 2020
    Glossary
    optical coherence tomography
    Optical coherence tomography (OCT) is a non-invasive imaging technique used in medical and scientific fields to capture high-resolution, cross-sectional images of biological tissues. It provides detailed, real-time, and three-dimensional visualization of tissue structures at the micrometer scale. OCT is particularly valuable in ophthalmology, cardiology, dermatology, and various other medical specialties. Here are the key features and components of optical coherence tomography: Principle of...
    eye
    The organ of vision or light sensitivity.
    line scan
    Line scan refers to a method of capturing images or data by scanning a single line at a time, as opposed to capturing the entire image simultaneously. This technique is commonly used in various imaging and scanning applications where a continuous or sequential scan along a line is more practical or efficient than capturing the entire image at once. Key features of line scan imaging include: Sequential capture: Instead of capturing an entire two-dimensional image at once, line scan systems...
    adaptive optics
    Adaptive optics (AO) is a technology used to improve the performance of optical systems by reducing the effects of atmospheric distortions. The Earth's atmosphere can cause light passing through it to experience distortions, resulting in image blurring and degradation in various optical applications, such as astronomical observations, laser communications, and imaging systems. Adaptive optics systems actively adjust the optical elements in real-time to compensate for these distortions. Key...
    Research & Technologyoptical coherence tomographyOCTeyeretinal imagingline scanImagingdiagnosticcamerasLasersOpticsadaptive opticsUniversity of WashingtonBioScan

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