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    Ultra-widefield camera captures images from macula, far periphery

    Live infrared, preview features among benefits of newly available imaging system

    A newly released high-definition (HD) ultra-widefield fundus imaging system (CLARUS 500, Carl Zeiss Meditec) enables clinicians to capture images of higher quality and resolution from a significantly larger area than traditional fundus cameras.

    The approach in designing the system was to provide the clinician the widest field of view with excellent clarity and color.

    One of the most important features of the new camera is that it captures images in natural color, closely resembling the color seen when examining the patient.

    It uses the full spectrum of light, incorporating three broad-spectrum LEDs—red, green, and blue—which makes it possible to get true color imaging. This true color allows for more clear views of the retina and retinal pathology.

    Another important feature is the resolution at any point on the image. The camera captures a high-resolution image down to 7 μm, which allows a user to zoom in anywhere on an image without losing quality.

    To enlarge image 1, click here. To enlarge image 2, click here.

    The system allows clinicians to zoom into any area and expand the entire screen to display it. The images are non-pixelated and can be compared with the quality of a traditional non-widefield fundus camera.

    Clinicians also benefit from having one device that provides ultra-widefield imaging for evaluating a broad range of patients, and to have one device provide high resolution—to track the progression of their glaucoma patients, as an example.

    “You can zoom in, and you’ve got a true-color, high-resolution photo of the macula, the optic nerve, a nevus, or whatever it is you’re trying to document,” said Roger Goldberg, MD, Bay Area Retina Associates, Walnut Creek, CA.

    Different from fundus camera


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