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R. Ursea, M. Feng, R. H. Silverman; Diagnosis of Corneal Postrefractive Anomalies With the Artemis. Invest. Ophthalmol. Vis. Sci. 2009;50(13):5780.
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© ARVO (1962-2015); The Authors (2016-present)
To evaluate the potential of Artemis high-resolution ultrasound (US) in diagnosis of corneal anomalies in the context of other imaging techniques, including conventional ultrasound biomicroscopy (UBM) and anterior segment optical coherence tomography (AS-OCT).
Five eyes from three postrefractive patients were scanned using the Artemis-2 in a series of meridians along each clock-hour. The echo data were then processed and B-mode images and thickness maps of the epithelium, flap and residual stromal bed layers were generated.
In our series, Artemis was able to detect anomalies in the cornea of postrefractive patients not seen by usual examination methods or other imaging techniques such as UBM or AS-OCT. One patient postLasik for myopia presented a refractile particle (debris) in the interface and three areas of Bowman disruption were identified. Another patient had a significant paracentral corneal thinning with a residual thickness of less than 250 microns. Precision of Artemis measurements is on the order of 1 to 5 µm and the resolution of its images ranges is 35 µm axially by 65 µm laterally.
The detailed, high resolution three-dimensional mapping by Artemis digital US provides a unique tool in the diagnosis and management of refractive surgical complications. Artemis was able to diagnose the causes of refractive surgical inaccuracy in particular cases.
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