Is kind of eye disorder in which there is sinking of eye ball in to its cavity with ptosis and swelling

Major cause horner’s syndrome is paralysis of cervical sympathetic nerve. 3 types of horner’s syndrome are known

1)      First neuron (central lesion) may be caused by occlusion of posterioinferior cerebellar artery at lower portion of brain stem,transient attack, brain tumor

2)      Second neuron (preganglionic lesion)  may caused by thoracic tumor,lung tumor,phrenic nerve tumor,spinal injury ,severe osteoarthritis of neck, neck trauma and injury (whiplash)

3)      Third neuron (post ganglionic lesion) may caused by skull fracture, migrane,or ear infection