视网膜脱离手术失败的主要原因是增殖性玻璃体视网膜病变。治疗伴有增殖性玻璃体视网膜病变的复杂视网膜脱离,仍然是个难题。六十年代曾采用玻璃体腔内注射硅油,其中一些作者得到较满意的结果,也有些作者认为成功率低,合并症多而且严重,所以此法未被广泛采用。七十年代,随着玻璃体切割手术的开展,对复杂视网膜脱离治疗的成功率达36%。尽管有这些新技术的发展,但大部分复杂视网膜脱离手术仍然失败。对于这些用经典方法及普通玻璃体切割手术不能治疗的病例,有人采用玻璃体切割术合并硅油注 The main reason for the failure of retinal detachment surgery is proliferative vitreoretinopathy. Treatment of complex retinal detachment associated with proliferative vitreoretinopathy remains a challenge. In the 1960s, intravitreal injection of silicone oil was used. Some of the authors obtained satisfactory results. Some authors also consider the success rate to be low, with many complications and serious complications. Therefore, this method has not been widely adopted. In the seventies, with the success of vitrectomy, the success rate of complex retinal detachment treatment was 36%. Despite these new developments, most of the complicated retinal detachment procedures have failed. For these cases with classical methods and ordinary vitrectomy can not be treated, some people use vitrectomy combined with silicone oil injection