From the Department of Refractive Surgery, Clínica Baviera (Gonzalez-Lopez, Bouza-Miguens, Tejerina, Bilbao-Calabuig,), Madrid, Department of Refractive Surgery, Clínica Baviera (Mompean), Murcia, Department of Refractive Surgery, Clínica Baviera (Ortega-Usobiaga), Bilbao, Spain.
J Cataract Refract Surg. 2021 Feb 1;47(2):204-210. doi: 10.1097/j.jcrs.0000000000000425.
To assess long-term crystalline lens transparency in eyes implanted with phakic collamer intraocular lens (pIOL) with a central port and low postoperative vault for correction of myopia.
Clinica Baviera, Madrid, Spain.
Retrospective cross-sectional single-center study.
Using a noninvasive Fourier-domain swept-source anterior segment optical coherence tomography system, shifts in myopic and astigmatic myopic eyes implanted with a pIOL with vaulting lower than 100 μm in miosis and more than 4 years of follow-up were dynamically evaluated. Main outcome measures were pIOL dynamic vault (vault interval and vault range [VR]), crystalline lens density, and anterior subcapsular lens opacities. Crystalline lenses were examined under slitlamp microscopy, and lens density was evaluated using quantitative Scheimpflug images. Scheimpflug images were compared with those of a control group comprising eyes that were candidates for pIOL implantation.
The study population comprised 24 eyes from 16 patients previously implanted with a pIOL (5.82 ± 0.9 years) with central vault lower than 100 μm under photopically induced miosis. The mean vault value was 52 ± 19 µm under photopic light conditions and 113 ± 37 µm under scotopic conditions. The mean VR was 58 ± 24 μm. Anterior subcapsular lens opacities were found in only 1 eye (4.17%). The mean lens density was 7.94 ± 0.43, and no statistically significant differences were observed compared with the control group.
Long-term low vaulting in eyes implanted with a pIOL with a central port for correction of myopia was associated with a low risk for developing anterior crystalline lens opacities.
评估用于矫正近视的中央孔型有孔环曲面晶状体眼内透镜（pIOL）术后低拱高状态下长期晶状体透明度。
西班牙马德里 Baviera 诊所。
回顾性横断面单中心研究。
使用非侵入性傅里叶域扫频源眼前节光学相干断层扫描系统，动态评估在咪眼前和近视性散光眼中植入拱高低于 100μm 的 pIOL 且随访时间超过 4 年的眼的 pIOL 动态拱高（拱高间隔和拱高范围[VR]）、晶状体密度和前囊下晶状体混浊情况。在裂隙灯显微镜下检查晶状体，并使用定量 Scheimpflug 图像评估晶状体密度。将 Scheimpflug 图像与一组拟植入 pIOL 的对照眼的图像进行比较。
研究人群包括 16 例患者的 24 只眼（5.82±0.9 年），这些眼在明视诱导的瞳孔缩小下植入的 pIOL 中央拱高低于 100μm。在明视条件下，拱高平均值为 52±19μm，在暗视条件下，拱高平均值为 113±37μm。平均 VR 为 58±24μm。仅 1 只眼（4.17%）发现前囊下晶状体混浊。平均晶状体密度为 7.94±0.43，与对照组相比无统计学差异。
用于矫正近视的中央孔型有孔环曲面晶状体眼内透镜植入术后低拱高与发生前晶状体混浊的风险较低相关。
