Abstract
Ultrasonic visualization is clinically important in ophthalmology because it makes possible accurate diagnosis of conditions existing in the soft tissues of the orbit and the light-opaque eye. No other diagnositic method short of surgery can yield comparable information. Short-pulse, focused-beam, 15-Mc apparatus is used. Serial distance-azimuth scans are displayed on a radar PPI and are photographed. Inherent resolution is better than 0.2 min. Technique topics to be discussed include: high resolution, compound scanning, quantitative reflection coefficient measurement by a photo-densitometric method, artifact identification, and three-dimensional ultrasonograms. Illustrative clinical ultrasonograms and their interpretations will be presented.
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