Sternfeld A, et al. - This trial encompassed the illustration of the long-term follow-up of infants with benign positional vertical opsoclonus. This phenomenon could be more prevalent than what was previously described. 6 patients were identified in only 3 years. This phenomenon exerted an impact on otherwise healthy infants and resolved spontaneously. Owing to the good long-term outcome, a comprehensive clinical analysis was not warranted.