Dynamic Assessment of Light-Induced Vaulting Changes of Implantable Collamer Lens With Central Port by Swept-Source OCT: Pilot Study

被引:58
作者
Gonzalez-Lopez, Felix [1 ]
Mompean, Blas [1 ,2 ]
Bilbao-Calabuig, Rafael [1 ]
Vila-Arteaga, Jorge [3 ,4 ]
Beltran, Jaime [1 ]
Baviera, Julio [1 ]
机构
[1] Inst Oftalmol Europeo, Clin Baviera, Madrid, Spain
[2] Hosp Torrevieja, Dept Ophthalmol, Alicante, Spain
[3] Hosp La Fe, Valencia, Spain
[4] Innova Ocular, Valencia, Spain
来源
TRANSLATIONAL VISION SCIENCE & TECHNOLOGY | 2018年 / 7卷 / 03期
关键词
phakic lens; collamer; OCT; dynamic vault; vault range; OPTICAL COHERENCE TOMOGRAPHY; PHAKIC INTRAOCULAR-LENS; POSTERIOR; ACCOMMODATION; EYES;
D O I
10.1167/tvst.7.3.4
中图分类号
R77 [眼科学];
学科分类号
100212 ;
摘要
Purpose: To assess dynamic variations in vault induced by changes in brightness in eyes implanted with phakic collamer intraocular lens (pIOL) with central port for correction of myopia, defining new parameters of vaulting measurement. Methods: We used a noninvasive Fourier-domain swept-source anterior-segment optical coherence tomography (AS-OCT) system to dynamically evaluate the shifts between the pIOL and anterior chamber structures under changing light conditions. For each eye assessed, we measured vault interval (VI), which we define based on central vault values in maximum mydriasis and in maximum miosis after light-induced changes in pupil diameter, and vault range (VR), which we define as the absolute difference between the VI values. Results: The pilot study sample comprised 39 eyes (23 patients) previously implanted (mean 107 +/- 156 days) with a pIOL. A significant difference in vault value was found when maximum and minimum pupil size was assessed under changing external light conditions (P < 0.001). The mean VR from scotopic (0.5 lux) to photopic (18,500 lux) light conditions was 167 +/- 70 mu m. Conclusions: Vault is continuously affected during movements of the pupil induced by external luminance. Translational Relevance: Quantifiable dynamic parameters VR and VI obtained with this AS-OCT device describe the position of the pIOL in the posterior chamber of the eye in a more accurate and real way than static vault measurements, and may contribute to improved understanding of the behavior of the pIOL in terms of safety.
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页数:7
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