THE CLINICAL PICTURE of hypertensive pontine hemorrhage is felt to be uniform. Coma is of abrupt onset with pupillary miosis, total external ophthalmoplegia, and quadriplegia. Death is the rule and occurs within hours to days. 2 This picture has been somewhat modified since the advent of CT scanning. Case reports have documented "submassive" pontine hemorrhage with partial to complete recovery....

Evaluation of horses for eye problems and for suspected impairment of visual acuity often requires a thorough neuroophthalmic examination to be conducted. Along with a full ophthalmic evaluation, the results of such an examination should indicate the likely site of any lesion(s) accounting for blindness, miosis, mydriasis, anisocoria, Horner's syndrome, strabismus, facial paralysis and facial s...

Constriction of the pupils (miosis) is often identified as the first noticeable sign of exposure to vapor nerve agents. We have previously identified that in minipigs there is a 30-40 fold difference in vapor dosages of sarin (GB) that elicit miosis vs. those vapor dosages that are potentially lethal. The ratio for miotic vs. lethal vapor dosages ranges from 100-135 fold when cyclo-sarin (GF) i...

A 65-year-old woman with poorly controlled diabetes presented bilateral miosis, bilateral abducens nerve palsy, and left hemiparesis. On MRI, cavernous sinus thrombosis, subdural empyema and hemorrhagic infarction in the frontotemporal lobe were detected. Cerebral angiogram revealed filling defect in the cavernous sinus with venous congestion but no involvement of internal carotid artery. Postm...

Horner syndrome (HS) occurs when there is interruption of the oculosympathetic pathway. The causes of HS are various, but HS originated from herniated cervical disc is very few. HS attributable to the lesion of the first-order neuron of cervical spinal cord is extremely rare. A 41-year old male was admitted for sudden onset of left ptosis and right side numbness. Neurological examination reveal...

A female 27 presented with nausea and diplopia for 1 week. On examination she had normal vertical gaze but would develop convergence with miosis whenever she made horizontal saccades. Pupils were 6 mm and unreactive to light. MRI showed extensive hyperintensity in the dorsal midbrain and thalamus. Spinal MRI and CSF were both normal. Serum aquaporin-4-antibody was positive. She was treated with...

.:X ......... hydroxyproline content. Arachnodactyly is diagnosed when the metacarpal index (length/ width of metacarpals II-V) is greater than 8 4. It is also found in association with homo: :. ....cystinuria, and in some patients with homozygous (SS) sickle-cell disease. The main ocular defect, which occurs in almost every case, is ectopia lentis, though microphakia and spherophakia, miosis d...

Seven cases of idiopathic Horner's Syndrome in the Collie are described. Five males and two females presented with unilateral miosis, ptosis of the upper eyelid, enophthalmos and protrusion of the third eyelid. Thorough examination, pharmacological testing with phenylephrine, complete blood counts and radiography of the tympanic bullae and thorax were performed. The etiology was not identified ...

Ipsilateral invasion of the cervical sympathetic plexus, leading to Horner's syndrome (miosis, enophthalmos, ptosis) in 14-50% of patients [2] . Ipsilateral reflex sympathetic dystrophy in the arm, with enhanced sensitivity to touch, and skin changes. Shoulder and arm pain (from the brachial plexus invasion C8-T1) with wasting of the intrinsic hand muscles and paraesthesiae in the medial side o...

Ipsilateral invasion of the cervical sympathetic plexus, leading to Horner's syndrome (miosis, enophthalmos, ptosis) in 14-50% of patients [2] . Ipsilateral reflex sympathetic dystrophy in the arm, with enhanced sensitivity to touch, and skin changes. Shoulder and arm pain (from the brachial plexus invasion C8-T1) with wasting of the intrinsic hand muscles and paraesthesiae in the medial side o...