Arciniegas A, Araya R
Barraquer Clinic, Bogota, Colombia.
Ann Ophthalmol. 1992 Dec;24(12):453-8.
Foreign bodies embedded in the retina and choroid that cannot be extracted by a magnet and require vitreous surgery for their removal comprise a separate group. A retrospective review of 40 consecutive cases (between 1977-1990) showed that this type of trauma frequently accompanied extensive ocular damage, including corneal and or scleral perforation, disruption of the lens, significant vitreous hemorrhage, retinal and choroid hemorrhage, and retinal detachment. Intraoperative and late complications occurred frequently, making the visual and structural outcomes of such eyes uncertain; therefore, another alternative must be sought that might improve the prognosis of these eyes. In this review, we emphasize (1) the time elapsed between the accident and the removal of the foreign body and (2) the final visual acuity and the time before the surgery.
嵌入视网膜和脉络膜且无法用磁铁取出而需要通过玻璃体手术来摘除的异物构成了一个单独的类别。对连续40例病例（1977年至1990年之间）进行的回顾性研究表明，此类创伤常常伴有广泛的眼部损伤，包括角膜和/或巩膜穿孔、晶状体破裂、大量玻璃体出血、视网膜和脉络膜出血以及视网膜脱离。术中及后期并发症频繁发生，使得此类眼睛的视觉和结构预后难以确定；因此，必须寻找另一种可能改善这些眼睛预后的方法。在本综述中，我们着重强调（1）事故发生至异物摘除之间所经过的时间，以及（2）最终视力和手术前的时间。
