Diplopia may result from a variety of causes. The cases reported here illustrate several etiologies, progneses, and diagnostic investigation. The most common ocular motor palsy was the abducens nerve palsy(48%), and the others were oculomotor nerve palsy(24%), convergence palsy(16%), trochlear nerve palsy(8%) and divergence palsy (4%) in this order. The most common cause of ocular movement palsy was vascular disorder (44%), and the other causes were trauma(16%), aneurysm(8%), neoplasm(4%) and hydrocephalus(4%). The ocular motor palsy due to vascular disorder was best prognosis.