Caballero A, Salinas M, Marin J M
Instituto Oftalmológico Murciano, Murcia, Spain.
J Cataract Refract Surg. 1997 Dec;23(10):1590-4. doi: 10.1016/s0886-3350(97)80035-1.
Posterior capsule opacification (PCO) from Elschnig pearl formation is a common complication of extracapsular cataract extraction. After PCO treatment by neodymium:YAG (Nd:YAG) laser posterior capsulotomy, Elschnig pearls may undergo hyperproliferation at the edge of the capsulotomy, which may close it. We have seen six eyes in five patients who presented with spontaneous disappearance of Elschnig pearls, resulting in a perfectly clear posterior capsule several years after an Nd:YAG posterior capsulotomy. Possible causes include (1) falling of pearls into the vitreous through the capsulotomy; (2) phagocytosis of pearls by macrophages; (3) cell death by apoptosis.
由Elschnig珠形成导致的后囊膜混浊（PCO）是囊外白内障摘除术的常见并发症。在用钕：钇铝石榴石（Nd：YAG）激光后囊切开术治疗PCO后，Elschnig珠可能在囊切开边缘处过度增殖，这可能会使其闭合。我们在5例患者的6只眼中观察到Elschnig珠自发消失，在Nd：YAG后囊切开术后数年，后囊膜完全清晰。可能的原因包括：（1）珠子通过囊切开处掉入玻璃体；（2）巨噬细胞对珠子的吞噬作用；（3）细胞凋亡导致的细胞死亡。
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