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Ophthalmic Technician

Category - Ophthalmic Imaging

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B-scan is NOT advised for which of the following conditions of the eye?

Pre-operative assessment in mature cataract
Vitreous hemorrhage
Choroidal melanoma
Blunt trauma to the eye with lid closure
Acute angle closure glaucoma

Explanation

Answer: E - B-scan is not advised in case of acute angle closure glaucoma. B-scan is not useful in visualization of the angle of the anterior chamber.

B-scan makes use of reflection of ultrasound waves from various structures in the eye. Based on this, structures are identified as normal or abnormal. It is very useful when visualization of the posterior segment of the eye is difficult due to hazy media, such as corneal opacity or a cataract.

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