A-scan ultrasonography


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Related to A-scan ultrasonography: MRI scan
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Noun1.A-scan ultrasonography - the use of ultrasonography to measure the length of the eyeball
echography, sonography, ultrasonography, ultrasound - using the reflections of high-frequency sound waves to construct an image of a body organ (a sonogram); commonly used to observe fetal growth or study bodily organs
References in periodicals archive ?
A-scan ultrasonography was used to calculate mean axial length for each eye (mean of 5 repeated readings).
AL measurements from ultrasound instruments are defined as the distance from the anterior cornea to the inner limiting membrane of the retina (A-scan ultrasonography).
Slit-lamp examination, transillumination, digital photography, A-scan ultrasonography, B-scan ultrasonography (USB), ultrasonic biomicroscopy (UBM), fluorescein and indocyanine green angiography, and anterior segment optical coherence tomography (AS-OCT) are methods utilized in diagnosis.