Hi there. This movement and eye signs could be a dystonia, which is neurological movement disorder in which sustained muscle contractions cause twisting and repetitive movements or abnormal postures. Oculogyric crisis could be the cause for the eye signs.This may be hereditary or caused by other birth related factors, physical trauma, reaction to certain drugs like neuroleptics etc. this could be an absence or petit mal seizure also. You need to check up with a pediatric neurologist for evaluation. EEG and MRI brain may also help. Take care.
I would make an appointment with his doctor to discuss your concerns with him or her. Do you have a way that you could record his actions and could show the doctor.
I hope this helps,
achilles2