Diseases of Muscles

Abstract

Myotonia Myotonia Atrophica (Dystrophia Myotonica) THE pathologic aspects of the atrophic form of myotonia, a chronic hereditary disease of muscle, characterized by the development of cataract with muscular and glandular dystrophy, have been considered by Farber,¹ who found striking changes in the lens in 3 cases. A slit-lamp examination revealed shiny flakes, white dots and dust-like opacities in a sharply defined layer under the anterior and posterior capsule. The flakes were green and blue, as found in cholesterol crystals. The same type of cataract, according to Farber, is seen in mongolism, traumatic myxedema, postoperative tetany and cretinism. Bertrand² reported on . . .