同型胱氨酸尿症(高胱氨酸尿症)是由于胱硫醚合成酶缺陷所致,主要表现为骨胳改变,精神发育迟缓,血管内血栓形成,眼部主要表现为晶体半脱位,系常染色体性遗传。患者王××男8岁1989年6月6日因左眼视物不清来诊。其父代诉,患儿自幼多动,说话不全,不识数,智力差。近2年来,左眼看不清东西,曾在当地医院诊断为双眼晶体脱位。近来视力更不清楚。患儿 Homocystinuria (homocystinuria) is due to cystathionine synthase defects caused by the main manifestations of skeletal changes, mental retardation, intravascular thrombosis, the main part of the occipital dislocation of the lens, Department of autosomal genetic. Patient Wang × × Male 8 years old June 6, 1989 due to the left eye sight unclear to the clinic. His father sued, children with hyperactivity, incomplete speech, illiteracy, poor intelligence. The past two years, the left eye can not see things, had a diagnosis of bilateral lens dislocation in the hospital. Recently vision is more unclear. Children