[Electromyography of eye muscles in myasthenia gravis]

The importance of the combination of electromyographic examination and the Tensilon test in the diagnosis of Myasthenia gravis pseudoparalytica of the eye muscles is discussed. After intravenous injection of Tensilon in ocular myasthenia, an activity increase is found in the electromyogram, even when the motor effect on the diseased muscle is not recognisable. Myopathies and peripheral neurogenic paresis do not respond to Tensilon.