[A clinical test for diagnosis of myasthenic ptosis].

A clinical test for diagnosis of ptosis in myasthenia is described. We studied the effect of antiorthostatic posture with head-down position on the degree of ptosis in myasthenia, ocular myopathy of von Graefe, lesions of the oculomotor nerve and pseudoptosis. The antiorthostatic posture significantly (p<0,05) decreased the degree of ptosis only in patients with myasthenia The degree of ptosis remained unchanged in myopathy of von Graefe, lesions of the oculomotor nerve and pseudoptosis.