Image diversity , shape modification with accommodation , dynamical change with accommodation, and age dependence of the ciliary body imaged by optical coherence tomography
Image diversity , shape modification with accommodation , dynamical change with accommodation, and age dependence of the ciliary body imaged by optical coherence tomography
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通过光学相干断层扫描成像的睫状体的图像多样性、调节的形状修改、调节的动态变化以及睫状体的年龄依赖性
DOI：
10.1117/12.905401
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
Kohji Ohbayashi
中科院分区：
文献类型：
--
作者：
Kimiya Shimizu;Nobuyuki Satoh;Akihito Igarashi;Motoi Nakanishi;Atsushi Goto;Donghak Choi;Reiko Yoshimura;Hideaki Hiro-Oka ;Hiroyuki Furukawa ;Kohji Ohbayashi
采用光学相干断层扫描（OCT）技术对睫状体及其动态进行了成像，以研究睫状体的调节和老花眼。我们使用了两个OCT系统；中心波长为1.6 μm的离散扫频梳OCT和中心波长为1.3μm的超快速光谱域OCT。对年龄在22岁至79岁之间的纤毛体进行了动态变化测量。OCT图像和影像反映了纤毛体在放松状态和调节状态下的变化。从二维成像结果来看，纤毛体的调整和调节在年轻的受试者组中更为明显。利用超快光谱域OCT系统，首次观察到纤毛体动力学随时间变化的三维影像。观察纤毛体厚度随调节的变化时间。
For investigation of accommodation and presbyopia, the ciliary body and its dynamics were imaged with Optical Coherence Tomography (OCT) method. We used two OCT systems; a discretely-swept frequency-comb OCT with a center wavelength at 1.6µ and ultra-fast spectral domain OCT with a center wavelength at 1.3μm. Measurements of dynamical modification of the ciliary body were carried out with ranging in age from 22 to 79. The OCT images and movies represent the changes of the ciliary body in the relaxed state and accommodated state. Modification in the ciliary body with accommodation was more evident for the younger subject group from the results of 2D imaging. The time dependent 3D movies of ciliary body dynamics were observed for the first time using ultra-fast spectral domain OCT system. The time duration of ciliary body thickness change in relation to the accommodation was measured from the movies.