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Ultrasound
biomicroscopy utilizes high frequency transducers to obtain high resolution.
Our unit, with a 50 MHz transducer, achieves a resolution of approximately 50
microns, and has a tissue penetration of 4-5 mm. Scanning is performed with
the patient in the supine position under standardized room lighting
conditions. Scanning is performed under topical anesthesia using a 20 mm eye
cup which is inserted between the lids and filled with saline solution. In
vivo, cross-sectional or transverse images can then be obtained detailing the
cornea, iris, ciliary body, anterior chamber angle, and peripheral sclera to
demonstrate structural relationships.
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