Hi Dr. Meyer, My 5 year old has been involuntarily been opening his eyes wide briefly, sometimes looking out the left side. If he s happy, smiling and the eye thing happens, he simultaneously becomes straight-faced. It only happens for a moment, but yet is frequent. The pediatrician suggested he has opsoclonus and recommended an Pediatric Ophthalmologist. He also ran a urine test on my son to check for neuroblastoma and thank God the results were normal. Do you have any input? Thanks!