No abstract

No abstract

This study clearly demonstrates that smooth pursuit is already present in the first week of life. We found no significant increase in velocity, gain and duration of smooth pursuit segments in the first 16 weeks of life with our recording technique. However, the total pursuit time, reflecting attention, increased with age. The ocular machinery to drive pursuit appears to be in place at birth and seems not to be influenced by increased attention in the first months of life.

These cases demonstrate that the pattern of eye movement disorders in some syndromes associated with mental retardation can give important clues in the determination of the diagnosis.