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晶体核坠入玻璃体是白内障超声乳化术较为严重的并发症。多由于术者手法不当造成后囊膜破裂所致。本文报导３例白内障超声乳化术中晶体核坠入玻璃体的处理，术后反应及与视力预后相关的因素，分析和讨论白内障超声乳化术中晶体核坠入玻璃体发生的原因及其预防。３例患者均于晶体核坠入玻璃体后７２小时内行经睫状体扁平部的闭合式玻璃体切割术。切除玻璃体，游离晶体核，然后改用后节超声粉碎探头吸引晶体核远离视网膜后乳化吸除。视残留晶体囊膜情况，均经原白内障手术切口于睫状沟内植入后房型人工晶体。术后晶体位置稳定。３例患者术后均有不同程度的炎症反应和角膜水肿，１例术后发生黄斑囊样水肿，１例发生脉络膜脱离，经适当处理后消退。未见其他并发症。术后最终视力０．３～０．６。结果表明，对于坠入玻璃体的晶体核，应及时地改行玻璃体切割术。经过适当的处理，患者最终仍可保留较好的视力。
Crystal nuclei fall into the vitreous cataract phacoemulsification is a more serious complication. More due to improper manipulation of the surgeon posterior capsule rupture. This paper reports the treatment of vitreous cataract, the postoperative response and the factors related to visual acuity prognosis in cataract phacoemulsification. The causes and prevention of vitreous crashes during cataract phacoemulsification were analyzed and discussed. Three patients underwent closed vitrectomy via the ciliary body flattened portion within 72 hours after the crystalline nucleus had fallen into the vitreous. Excision of the vitreous, free crystal nuclei, and then use the post-section ultrasound smash the probe to attract the crystal nucleus away from the retina after the emulsion absorption. Depending on the residual crystal capsule situation, all through the original cataract surgical incision in the ciliary sulcus implantation of posterior chamber intraocular lens. Postoperative crystal position stable. Three patients had different degrees of inflammation and corneal edema postoperatively, macular cystoid edema occurred in one case, choroidal detachment in one case and subsided after appropriate treatment. No other complications. Postoperative visual acuity 0.3 ~ 0.6. The results show that, for the crystal nucleus falling into the vitreous, vitrectomy should be promptly diverted. After proper treatment, the patient can still retain better visual acuity.