Not a characteristic feature of Lowe's syndrome

Oculocerebrorenal syndrome (also called Lowe syndrome) is a rare X-linked recessive disorder characterized by congenital cataracts, hypotonia and areflexia, mental retardation, proximal tubular acidosis, aminoaciduria, phosphaturia, and low-molecular-weight proteinuria. Glaucoma is present in about 50% of cases.