Paralysis of the 3rd cranial nerve can be caused by brain disorders - such as head injury , bulge ( aneurysm ) in the arteries supplying the brain , hemorrhoids , or tumor or by diabetes .
SYMPTOMS
Affected eye rotates out when the unaffected eye looking straight ahead , causing double vision . Affected eye can move only in the direction of the center when he saw k edalam and can not move up and down . Since the 3rd cranial nerve also raises the eyelid and pupil control , withered eyelids , and pupils dilated possibility ( enlarged ) . It can not constrict ( shrink in reaction to light .
The disorder can cause paralysis worsened , resulting in serious , life-threatening circumstances . For example , severe headaches can occur suddenly , or someone may become increasingly drowsy or less responsive . In some cases , the possibility of rupture of an aneurysm causes , which then bleed . Enlargement and less response to light ( fixation ) by both pupils indicate severe coma and possible death of the brain .
Diagnosis
Diagnosis is based on neurological research results and computed tomography ( CT ) or magnetic resonance imaging ( MRI ) . If the pupil is exposed or if symptoms are thought to be a serious underlying disorder , CT performed immediately . If an aneurysm is suspected and CT did not detect the rupture of blood , spinal tap ( lumbar puncture , magnetic resonance angiography , CT angiography , or cerebral angiography is performed ) .
TREATMENT
Treatment depends on the cause . Emergency treatment is needed if a life-threatening disorder is the cause .
