A Biomechanical Study of Flanged Intrascleral Haptic Fixation of Three-Piece Intraocular Lenses.
A Biomechanical Study of Flanged Intrascleral Haptic Fixation of Three-Piece Intraocular Lenses.
复制标题
DOI：
10.1016/j.ajo.2021.02.021
复制
发表时间：
2021-07
影响因子：
4.2
通讯作者：
Pineda, Roberto
中科院分区：
文献类型：
--
作者：
Ma, Kevin K.;Yuan, Amy;Sharifi, Sina;Pineda, Roberto
带凸缘的巩膜内支撑襻固定（FISH）是一种用于在无囊膜支撑的眼中固定人工晶状体（IOL）的有效方法。进行了生物力学研究以支持该技术的使用。实验室调查。使用30号和27号针将3件式IOL的支撑襻穿过尸体人巩膜。通过使用烧灼从支撑襻末端熔化1.0 mm来创建凸缘。使用机械测试仪和定制安装件测量从巩膜移除凸缘支撑襻和从光学部拔出支撑襻所需的力。CT Lucia 602（2.04 ± 0.24牛顿[N]）使用30号缝针时的平均FISH脱位力最大，而LI 61 AO（0.93 ± 0.41 N; P = 0.001）、ZA 9003（0.70 ± 0.34 N; P = <0.001）和MA 60 AC（0.27 ± 0.19 N; P <0.001）。使用27号针和CT Lucia导致脱位力较低（0.56 ± 0.36 N; P <0.001）。FISHF脱位力与凸缘-针直径比相关（r = 0.975）。CT Lucia和LI 61 AO使用30号针的FISH脱位力与其支撑襻-光学部脱位力无显著差异（分别为P = 0.79和0.27）。IOL中1.0 mm和2.0 mm支撑襻熔化长度之间的凸缘直径没有差异（P = 0.15 - 0.85）。这些数据强烈支持使用CT Lucia的聚偏二氟乙烯支撑襻的FISHF的生物力学稳定性，该支撑襻使用小直径器械创建巩膜内隧道。1.0 5 mm的触觉部可以是最佳的熔化长度。
Flanged intrascleral haptic fixation (FISHF) is a useful method for securing intraocular lenses (IOLs) in eyes without capsular support. Biomechanical studies were conducted to support the use of this technique. Laboratory investigation. Haptics of 3-piece IOLs were passed through cadaveric human sclera using 30- and 27-gauge needles. Flanges were created by melting 1.0 mm from the haptic ends using cautery. The forces required to remove the flanged haptic from the sclera and disinsert the haptic from the optic were measured using a mechanical tester and a custom-fabricated mount. The mean FISHF dislocation force using 30-gauge needles was greatest with the CT Lucia 602 (2.04 ± 0.24 newtons [N]) compared to the LI61AO (0.93 ± 0.41 N; P =.001), ZA9003 (0.70 ± 0.34 N; P = <.001), and MA60AC (0.27 ± 0.19 N; P <.001). Using 27-gauge needles with the CT Lucia resulted in a lower dislocation force (0.56 ± 0.36 N; P <.001). The FISHF dislocation force was correlated with the flange-to-needle diameter ratio (r = 0.975). The FISHF dislocation forces of the CT Lucia and LI61AO using 30-gauge needles were not significantly different from their haptic-optic disinsertion forces (P =.79 and.27, respectively). There were no differences in flange diameters between 1.0 mm and 2.0 mm haptic melt lengths across the IOLs (P =.15–.85). These data strongly support the biomechanical stability of FISHF with the polyvinylidene fluoride haptics of the CT Lucia using small diameter instruments for the creation of an intrascleral tunnel. 1.0 mm of haptic may be the optimal melt length.
登录
查看更多内容
DOI：
10.1097/iae.0000000000002560
发表时间：
2020-06-01
影响因子：
3.3
作者：
Bonnell, Alyssa C.;Polo, Richard N.;Prenner, Jonathan L.
通讯作者：
Prenner, Jonathan L.
DOI：
10.1097/j.jcrs.0000000000000135
发表时间：
2020-05-01
影响因子：
2.8
作者：
Barca, Francesco;Caporossi, Tomaso;Rizzo, Stanislao
通讯作者：
Rizzo, Stanislao
DOI：
10.1097/iae.0000000000001941
发表时间：
2018-09
期刊：
Retina (Philadelphia, Pa.)
影响因子：
--
作者：
Todorich B;Stem MS;Kooragayala K;Thanos A;Faia LJ;Williams GA;Hassan TS;Woodward MA;Wolfe JD
通讯作者：
Wolfe JD
影响因子：
2.8
作者：
Agarwal, Amar;Kumar, Dhivya Ashok;Srinivasan, Sridhar
通讯作者：
Srinivasan, Sridhar
影响因子：
2.8
作者：
Gabor, Scharioth G. B.;Pavlidis, Mitrofanis M.
通讯作者：
Pavlidis, Mitrofanis M.