[Mucopolysaccharidosis IS: Scheie's syndrome. A report of 2 brothers].

We describe two brothers affected by MPS type IS (Scheie syndrome). Mucopolysaccharidosis type I consists of three clinical entities of varying severity, all due to alfalevo-iduronidase enzyme deficiency. The MPS IS in characterized by joint stiffness, aortic valve disease and corneal clouding. The intellect is normal. All these findings are present on our brothers; furthermore retinal degeneration also occurred. It could give in the future attendant deterioration of vision.