Figure 2. Results of ocular alignment and ocular motility, 5 days after injury. (A) Results of alternate prism cover test (APCT) for farocular alignment. The right gaze shows aggravation of left hypertropia relative to the primary position. The left hypertropia improves with head tilt to the right and worsens with head tilt to the left, and the Bielschowsky head-tilt test result is positive with tilt to the left. Parks’ three-step test was consistent with a diagnosis of superior oblique palsy in the left eye. APCT results showed a negative complication of pseudo-Brown syndrome. (B) No obvious limitation of ocular motility. There is no limitation of elevation in the adduction of the left eye.