In the years 1963-1981 internuclear ophthalmoplegia syndromes were observed 106 times in 94 patients treated in hospital for multiple sclerosis. Besides the typical syndromes of anterior and posterior internuclear ophthalmoplegia, Webino syndrome and the one-and-a-half syndrome in 4 cases syndromes were observed with superimposition of bilateral syndromes of anterior and posterior internuclear ophthalmoplegia. For these cases the author suggests the term--complete internuclear ophthalmoplegia.