<prompt> III nerve palsy causes all of the following except:PtosisMydriasisMedial detion of eyeballPupillary reflex lost  <response>: C i.e. Medial detion of eyeball Isolated, pupil- sparing occulomotor palsy mostly result from microvascular infarction of nerve. Diabetes, hypeension and vascular disease are major risk factorsQ. Usually the patients complain of pain. Spontaneous recovery over a period of month is the rule. Miswiring or abbe rant regeneration is not seen after occulomotor palsy from microvascular infarct and hence vitiates that diagnosis. Abberant regeneration is common in injuries by trauma or compression tumor, aneurysm. 3rd nerve Occulomotor Nerve Palsy Muscles involved Clinical features Except superior oblique 504 lateral rectus LR6 all other muscles i.e. superior, inferior medial rectus, inferior oblique levator palpebrae superioris are paralysed Q - Down out eye Q due to unopposed S.O. L.R. - Medial upward gaze is not possible Q - Ptosis Q due to LPS paralysis - Dilation of pupil Q - Loss of accommodation Q - Loss of pupillarylight reflex Q 