Ocular ultrasounds are favourite questions in the OSE. B scans pictures appear more frequently than A scans. As there are only a few conditions that show well with a normal ultrasound machine, a short tutorial will allow you to diagnose most of the cases.

     We begin with the principles of ultrasound in a question and answer format followed by a discussion of the most commonly seen (and those likely to appear in future examination) cases in Optic and Refraction.

     For a more detailed discussion of ultrasound, the book Ophthalmic Ultrasound: A Practical Guide by HR Atta is highly recommended.

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