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Ophthalmic Technician

Category - Ophthalmic Imaging

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The B-scan of the eye can make use of three different orientations. Which one of the following is NOT used?

Transverse
Longitudinal
Axial
Spiral

Explanation

Answer: D - Transverse, longitudinal and axial orientations are used in B-scan. The transverse scan is used to determine the lateral extent of the lesion. The longitudinal scan is used to determine the length (anterior to posterior) of the lesion. The axial scan is used to locate lesions in the posterior pole or macula. Axial scans can be done horizontally, vertically and obliquely.

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