Birchall Wayne, Brahma Arun K
Manchester Royal Eye Hospital, Oxford Road, Manchester, United Kingdom.
J Cataract Refract Surg. 2004 Jun;30(6):1378-81. doi: 10.1016/j.jcrs.2003.11.029.
We report a case of troublesome visual symptoms or dysphotopsia in a 68-year-old patient after right phacoemulsification and implantation of a 3-piece AcrySof(R) MA60BM acrylic intraocular lens (IOL) (Alcon) in the capsular bag. The patient described multiple horizontal streaks in dim lighting conditions with light sources in the right temporal visual field. The anterior capsulorhexis was eccentric, leaving the nasal optic edge and site of polypropylene haptic insertion uncovered by the semi-opaque anterior capsule and the probable source of the flare images. Miotic therapy was poorly tolerated and IOL exchange declined. The case illustrates the importance of creating a central capsulorhexis smaller than the IOL optic to reduce the risk photic phenomena and edge effect with square-edged IOLs.
我们报告了一例68岁患者在右眼白内障超声乳化吸除术并在囊袋内植入一片式AcrySof® MA60BM丙烯酸人工晶状体(IOL)(爱尔康公司)后出现令人困扰的视觉症状或闪光幻觉的病例。患者描述在昏暗照明条件下,右侧颞侧视野有光源时会出现多条水平条纹。前囊连续环形撕囊偏心,聚丙烯襻插入处的鼻侧光学边缘和部位未被半透明的前囊覆盖,这可能是眩光图像的来源。缩瞳治疗耐受性差,且患者拒绝人工晶状体置换。该病例说明了制作小于人工晶状体光学部的中央连续环形撕囊以降低方形边缘人工晶状体产生光现象和边缘效应风险的重要性。