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    Add-on module enhances diagnostic accuracy in glaucoma

    Technology can create anatomic map using two fixed landmarks; includes reference data base

    Glaucoma specialists have a new tool in their clinical armamentarium through an add-on module designed to improve diagnostic accuracy through a comprehensive analysis of the optic nerve head, retinal nerve fiber layer, and ganglion cell layer as well as use of an extensive reference data base.

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    The Glaucoma Module Premium Edition for Heidelberg Engineering’s Spectralis OCT imaging platform received FDA 510(k) clearance last fall. The add-on module, which has been on the market internationally for a number of years, has several distinctive features, said Kester Nahen, PhD, managing director, Heidelberg Engineering.

    “One is that for the first time we are customizing or individualizing the scan protocol to the anatomy of the patient,” Dr. Nahen said. “There’s quite a variation from patient to patient in the way that the optic nerve head is oriented, relative to the fovea, what we call the fovea-to-Bruch’s membrane opening angle.

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    “And the Bruch’s membrane opening center is the center of the optic nerve head,” Dr. Nahen said. “With the OCT, we’re able to identify those landmarks, and we are then able to place any subsequent OCT scan according to these coordinates.”

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