Noninvasive Imaging and Measurement of Accommodation Using Dual-Channel SD-OCT
Noninvasive Imaging and Measurement of Accommodation Using Dual-Channel SD-OCT
复制标题
使用双通道 SD-OCT 进行无创成像和调节测量
DOI：
10.3109/02713683.2013.860991
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发表时间：
2014-06-01
影响因子：
2
通讯作者：
Zhou, Chuanqing
中科院分区：
文献类型：
--
作者：
Sun, Yong;Fan, Shanhui;Zhou, Chuanqing
目的：利用双通道、双焦点光谱域光学相干断层扫描（SD - OCT）研究对眼调节（0 - 5D，以1屈光度为步长）进行实时无创成像和测量的可行性和实用性。
材料与方法：使用定制的双通道、双焦点SD - OCT对眼前节进行成像，包括角膜、虹膜以及晶状体的前表面和后表面。对每位受试者在每次调节过程中进行三次连续测量。根据所获取的SD - OCT图像计算调节过程中眼部尺寸的变化。采用弗里德曼检验来测试每屈光度调节时眼部尺寸变化的敏感性。
结果：随着调节，前房深度（ACD）、晶状体前表面（RAL）和后表面（RPL）的曲率半径以及瞳孔直径（PD）显著减小，而晶状体厚度（LT）显著增加（p
Purpose: To investigate the feasibility and practicality of real-time noninvasive imaging and measurement of ocular accommodation (0-5D with one diopter step) using dual-channel, dual-focus spectral domain optical coherence tomography (SD-OCT).Materials and Methods: A custom-built, dual-channel, dual-focus SD-OCT was used to image the anterior segment, including the cornea, iris, and anterior and posterior lens surfaces. Three consecutive measurements were taken in each accommodative session for each subject. Changes in ocular dimensions during accommodation were calculated based on the acquired SD-OCT images. A Friedman test was used to test sensitivity of ocular dimension changes per diopter of accommodation.Results: With accommodation, anterior chamber depth (ACD), curvature radius of both anterior (RAL) and posterior (RPL) lens surfaces, and pupil diameter (PD) decreased significantly, whereas lens thickness (LT) increased significantly (p