以兔作实验动物，以乙稀醋酸乙烯共聚体（EVA）为原料，加工制成合适大小的充填块，埋置于背部皮下和眶骨膜下，分别进行了10周和6月的临床和组织病理学观察。实验结果，EVA与组织相容性好，不刺激周围形成致密的纤维组织包裹囊并有纤维组织生长伸入EVA块网孔中，埋置于组织内位置稳定，光移位或脱出。分析认为EVA是一种较为经济、有效、实用的整形充填材料。 Rabbits were used as experimental animals, and ethylene-vinyl acetate copolymer (EVA) was used as a raw material to prepare filling blocks of appropriate size. The rabbits were subcutaneously suborbital and periorbital submucosa and were respectively subjected to 10 weeks and 6 months clinical and tissue Pathological observation. Experimental results, EVA and tissue compatibility is good, does not stimulate the formation of dense fibrous tissue surrounding the capsule and the growth of fibrous tissue into the EVA block mesh, embedded in the organization within a stable position, the light shift or prolapse. Analysis shows that EVA is a more economical, effective and practical plastic filling material.