Figure 3. Eye movement recording of the proband in the NYS008 family. Eye movement recordings of the primary gaze of the right and left eyes of the proband showed horizontal nystagmus (A and B). The ocular oscillation could be dampened at neither the left (C) nor the right (D) gaze of 10°, but could be achieved at a viewing distance of 33 cm (E). The vertical component of the eye movement is denoted in green, and the horizontal movement is shown in red.