Tehrani Mana, Mamalis Nick, Wallin Trevin, Dick H Burkhard, Stoffelns Bernhard M, Olson Randall, Fry Luther L, Clifford William S
Department of Ophthalmology, Johannes Gutenberg-University, Mainz, Germany.
J Cataract Refract Surg. 2004 Jan;30(1):115-22. doi: 10.1016/S0886-3350(03)00461-9.
To report clinical and spectrographic analyses of 2 explanted hydrophilic acrylic intraocular lenses (IOLs).
John A. Moran Eye Center, Salt Lake City, Utah, USA, and Johannes Gutenberg-University, Department of Ophthalmology, Mainz, Germany.
We report 6 cases of opacification of MemoryLens IOLs (Ciba Vision) that occurred approximately 2 years after implantation. The anterior and posterior surfaces of the IOLs had a white, frosted appearance, and the IOLs' interior looked brown, similar to the appearance of a brunescent cataract. Two of the IOLs were explanted because of a significant decrease in visual acuity. The IOLs were sent for further clinicopathologic analysis including scanning electron microscopy and energy dispersive x-ray spectroscopy (EDX).
Microscopic analysis revealed multiple, fine, granular deposits of various sizes on the surface of the lens optics. The EDX analysis showed the presence of calcium within the deposits.
Our cases show that hydrophilic acrylic IOLs can opacify even years after implantation. Analysis of the explanted IOLs revealed calcification.
报告对2枚取出的亲水性丙烯酸人工晶状体（IOL）进行的临床及光谱分析。
美国犹他州盐湖城的约翰·A·莫兰眼科中心以及德国美因茨约翰内斯·古登堡大学眼科。
我们报告6例MemoryLens IOL（爱尔康公司）植入后约2年出现混浊的病例。IOL的前表面和后表面呈现白色、磨砂样外观，其内部看起来呈褐色，类似于核性白内障的外观。其中2枚IOL因视力显著下降而被取出。这些IOL被送去进行进一步的临床病理分析，包括扫描电子显微镜检查和能量色散X射线光谱分析（EDX）。
显微镜分析显示晶状体光学部表面有多个大小各异的细小颗粒状沉积物。EDX分析表明沉积物中存在钙。
我们的病例表明，亲水性丙烯酸IOL即使在植入数年之后仍可能发生混浊。对取出的IOL进行分析发现有钙化现象。
