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Evaluation of posterior capsule opacification of the Alcon Clareon IOL vs the Alcon Acrysof IOL using a human capsular bag model.
BMC Ophthalmology ( IF 1.7 ) Pub Date : 2020-02-27 , DOI: 10.1186/s12886-020-01349-5
Anna Hillenmayer 1 , Christian M Wertheimer 1 , Stefan Kassumeh 1 , Annabel von Studnitz 1 , Nikolaus Luft 1 , Andreas Ohlmann 1 , Siegfried Priglinger 1 , Wolfgang J Mayer 1
Affiliation  

BACKGROUND Posterior capsule opacification (PCO) after cataract surgery is influenced by intraocular lens (IOL) design and material. The following is an ex vivo comparison of PCO between the Clareon vs. the AcrySof IOL in human capsular bags. METHODS Twenty cadaver capsular bags from 10 human donors were used, with the novel hydrophobic IOL (Clareon, CNA0T0) being implanted in one eye and the other eye of the same donor receiving the AcrySof IOL (SN60WF) following phacoemulsification cataract surgery. Five capsular bags of 3 donors served as controls without IOL. Cellular growth of lens epithelial cells was photo-documented daily. The primary endpoint was the time until full coverage of the posterior capsule by cells. Furthermore, immunofluorescence staining of capsular bags for the fibrotic markers f-actin, fibronectin, alpha smooth muscle actin, and collagen type 1 were performed. RESULTS The new Clareon IOL did not show any disadvantages in terms of days until full cell coverage of the posterior capsule in comparison to the AcrySof (p > 0.99). Both, the Clareon (p = 0.01, 14.8 days) and the AcrySof IOL (p = 0.005, 15.7 days) showed a slower PCO development in comparison to the control (8.6 days). The fibrotic markers f-actin, fibronectin, alpha smooth muscle actin, and collagen type 1 were equally distributed between the two IOLs and differed from the control. CONCLUSIONS A comparable performance has been found in the ex vivo formation of PCO between the two IOLs. Long-term clinical studies are necessary to reach final conclusions.

中文翻译:

使用人囊袋模型评估Alcon Clareon IOL与Alcon Acrysof IOL的后囊混浊。

背景技术白内障手术后的后囊混浊(PCO)受人工晶状体(IOL)设计和材料的影响。以下是人荚膜袋中Clareon与AcrySof IOL之间的PCO的离体比较。方法使用来自10个人类供体的20个尸体囊袋,将新的疏水性IOL(Clareon,CNA0T0)植入白内障超声乳化白内障手术后接受AcrySof IOL(SN60WF)的同一个供体的一只眼睛和另一只眼中。五个囊袋由3个供体组成,作为无IOL的对照。每天用镜头记录晶状体上皮细胞的细胞生长。主要终点是细胞完全覆盖后囊的时间。此外,针对囊性纤维化标记物f-actin,纤连蛋白,α平滑肌肌动蛋白的免疫荧光染色,并进行1型胶原蛋白。结果与AcrySof(p> 0.99)相比,新的Clareon IOL在几天后没有显示任何不利之处,直到后囊完全被细胞覆盖为止。与对照组(8.6天)相比,Clareon(p = 0.01,14.8天)和AcrySof IOL(p = 0.005,15.7天)均显示出较慢的PCO发育。纤维化标记物f-肌动蛋白,纤连蛋白,α平滑肌肌动蛋白和1型胶原蛋白在两个IOL之间平均分布,并且与对照组不同。结论在两个IOL之间的PCO的离体形成中发现了可比较的性能。长期临床研究对于得出最终结论是必要的。结果与AcrySof(p> 0.99)相比,新的Clareon IOL在几天后没有出现任何不利之处,直到后囊完全被细胞覆盖为止。与对照组(8.6天)相比,Clareon(p = 0.01,14.8天)和AcrySof IOL(p = 0.005,15.7天)均显示出较慢的PCO发育。纤维化标记物f-肌动蛋白,纤连蛋白,α平滑肌肌动蛋白和1型胶原蛋白在两个IOL之间平均分布,并且与对照组不同。结论在两个IOL之间的PCO的离体形成中发现了可比较的性能。长期临床研究对于得出最终结论是必要的。结果与AcrySof(p> 0.99)相比,新的Clareon IOL在几天后没有显示任何不利之处,直到后囊完全被细胞覆盖为止。与对照组(8.6天)相比,Clareon(p = 0.01,14.8天)和AcrySof IOL(p = 0.005,15.7天)均显示出较慢的PCO发育。纤维化标记物f-肌动蛋白,纤连蛋白,α平滑肌肌动蛋白和1型胶原蛋白在两个IOL之间平均分布,并且与对照组不同。结论在两个IOL之间的PCO的离体形成中发现了可比较的性能。长期临床研究对于得出最终结论是必要的。7天)显示出与对照组(8.6天)相比,PCO的发育较慢。纤维化标记物f-肌动蛋白,纤连蛋白,α平滑肌肌动蛋白和1型胶原蛋白在两个IOL之间平均分布,并且与对照组不同。结论在两个IOL之间的PCO的离体形成中发现了可比较的性能。长期临床研究对于得出最终结论是必要的。7天)显示出与对照组(8.6天)相比,PCO的发育较慢。纤维化标记物f-肌动蛋白,纤连蛋白,α平滑肌肌动蛋白和1型胶原蛋白在两个IOL之间平均分布,并且与对照组不同。结论在两个IOL之间的PCO的离体形成中发现了可比较的性能。长期临床研究对于得出最终结论是必要的。
更新日期:2020-02-27
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