NB is a 26-year-old man who complained of pain and pressure around his left eye. It was aggravated somewhat when he looked down. A-scan measured the left superior oblique tendon to be 3.59 mm compared to 2.1 mm on the right (Fig. 129). There was thickening of the trochlear area (Fig. 130) and the patient experienced some tenderness when gentle pressure was applied with the probe at this point. The diagnosis of superior oblique tendonitis and trochleitis was made and steroid was injected into the area of the trochlea with marked relief of his symptoms after several days.
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