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# FDA Clears Avanti Widefeild Optical Tomography
- URL: https://www.fdaweb.com/fda-clears-avanti-widefeild-optical-tomography/
- Published: 2018-06-14T12:00:00.000Z
- Updated: 2026-09-15T00:13:05.000Z
- Author: David McFarland
- Tags: Devices, #legacy-id-D5141692

FDA has cleared an Optovue 510(k) for its Avanti Widefield Optical Coherence Tomography system for non-contact, quantitative measurements of the epithelial and stromal layers of the cornea (epithelial thickness mapping or ETM). The expanded clearance adds a nine-millimeter ETM scan to the previously available six-millimeter map, allowing for detection of epithelial irregularities in an area that is about two-and-a-quarter times that of the area covered by the six-millimeter scan, the company says. “The measurement of corneal epithelial thickness is recognized by medical professionals as a vital part of assessing patients for refractive surgery and following post-operative recovery, as well as managing patients with progressive eye diseases and ocular surface disorders,” it adds.