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Abstract：
BACKGROUND: To evaluate the feasibility of creating flanges using an optic piercing technique with a 6 - 0 polypropylene monofilament for scleral fixation of dislocated one-piece diffractive multifocal intraocular lenses (IOLs).
METHODS: Experimental study and case series.
METHODS: Optical bench test and eyes with IOL dislocation.
METHODS: Two separate 6 - 0 polypropylenes were penetrated twice at the opposite peripheral optic of the TECNIS Synergy IOL (Johnson & Johnson Vision). The root mean square of the modulation transfer function (MTFRMS), at between + 1.00 and - 4.00 D of defocus, was measured in the TECNIS Synergy IOL both with and without optic piercing in the optical bench study. This case series included three eyes from two patients who underwent scleral-fixation of multifocal IOLs using the four-flanged polypropylene optic piercing technique. The postoperative corrected distance visual acuity (CDVA) at 4 m, the uncorrected near visual acuity (UNVA) at 40 cm, and IOL centration were evaluated.
RESULTS: The optical bench test showed no differences in MTFRMS values measured in the TECNIS Synergy IOL, either with or without optic piercing at all defocuses. In all three case series, the postoperative CDVA at 4 m was 20/20 and UNVA at 40 cm was J1. Postoperative anterior segment photographs showed good centration of IOLs in all cases.
CONCLUSIONS: The four-flanged polypropylene optic piercing technique for multifocal IOL scleral fixation can provide excellent clinical outcomes and IOL stability after surgery without diminishing the performance of the multifocal IOLs.
METHODS: Experimental study and case series.
METHODS: Optical bench test and eyes with IOL dislocation.
METHODS: Two separate 6 - 0 polypropylenes were penetrated twice at the opposite peripheral optic of the TECNIS Synergy IOL (Johnson & Johnson Vision). The root mean square of the modulation transfer function (MTFRMS), at between + 1.00 and - 4.00 D of defocus, was measured in the TECNIS Synergy IOL both with and without optic piercing in the optical bench study. This case series included three eyes from two patients who underwent scleral-fixation of multifocal IOLs using the four-flanged polypropylene optic piercing technique. The postoperative corrected distance visual acuity (CDVA) at 4 m, the uncorrected near visual acuity (UNVA) at 40 cm, and IOL centration were evaluated.
RESULTS: The optical bench test showed no differences in MTFRMS values measured in the TECNIS Synergy IOL, either with or without optic piercing at all defocuses. In all three case series, the postoperative CDVA at 4 m was 20/20 and UNVA at 40 cm was J1. Postoperative anterior segment photographs showed good centration of IOLs in all cases.
CONCLUSIONS: The four-flanged polypropylene optic piercing technique for multifocal IOL scleral fixation can provide excellent clinical outcomes and IOL stability after surgery without diminishing the performance of the multifocal IOLs.
摘要：
背景：为了评估使用具有6-0聚丙烯单丝的光学穿孔技术创建法兰的可行性，用于脱位的一件式衍射多焦点人工晶状体（IOL）的巩膜固定。
方法：实验研究和案例系列。
方法：光学台架试验和人工晶状体脱位眼。
方法：两个单独的6-0聚丙烯在TECNISSynergyIOL（强生视觉）的相对外围光学器件处两次穿透。调制传递函数的均方根(MTFRMS)，在离焦+1.00和-4.00D之间，在光学座研究中，在TECNISSynergyIOL中测量了有无光学穿孔。此病例系列包括两名患者的三只眼睛，他们使用四法兰聚丙烯光学穿孔技术对多焦点IOL进行了巩膜固定。术后矫正视力(CDVA)4m,未矫正的近视敏度（UNVA）在40厘米，评估IOL浓度。
结果：光学台架测试表明，在TECNISSynergyIOL中测得的MTFRMS值没有差异，在所有散焦时都有或没有光学穿孔。在所有三个案例系列中，术后4m处的CDVA为20/20,40cm处的UNVA为J1.术后眼前段照片显示，在所有情况下，IOL的浓度都很好。
结论：用于多焦点IOL巩膜固定的四法兰聚丙烯光学穿刺技术可以提供出色的临床效果和术后IOL稳定性，而不会降低多焦点IOL的性能。
方法：实验研究和案例系列。
方法：光学台架试验和人工晶状体脱位眼。
方法：两个单独的6-0聚丙烯在TECNISSynergyIOL（强生视觉）的相对外围光学器件处两次穿透。调制传递函数的均方根(MTFRMS)，在离焦+1.00和-4.00D之间，在光学座研究中，在TECNISSynergyIOL中测量了有无光学穿孔。此病例系列包括两名患者的三只眼睛，他们使用四法兰聚丙烯光学穿孔技术对多焦点IOL进行了巩膜固定。术后矫正视力(CDVA)4m,未矫正的近视敏度（UNVA）在40厘米，评估IOL浓度。
结果：光学台架测试表明，在TECNISSynergyIOL中测得的MTFRMS值没有差异，在所有散焦时都有或没有光学穿孔。在所有三个案例系列中，术后4m处的CDVA为20/20,40cm处的UNVA为J1.术后眼前段照片显示，在所有情况下，IOL的浓度都很好。
结论：用于多焦点IOL巩膜固定的四法兰聚丙烯光学穿刺技术可以提供出色的临床效果和术后IOL稳定性，而不会降低多焦点IOL的性能。
