En-face OCT imaging of the anterior chamber
En-face OCT imaging of the anterior chamber
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前房的 En-face OCT 成像
DOI：
10.1117/12.470490
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发表时间：
2002
影响因子：
3.4
通讯作者：
D. Jackson
中科院分区：
文献类型：
--
作者：
A. Podoleanu;J. Rogers;G. Dobre;R. Cucu;D. Jackson
我们报告一个系统能够收集对面OCT和共焦图像从前房。从角膜顶部测量的前房深度达7 mm处收集成对的此类图像。波长为85微米，功率为0.3mW。该系统提供：（i）多功能性，能够显示两种C扫描OCT图像（恒定深度，垂直于光轴）以及B扫描OCT图像（ii）使用共焦通道中的浦肯野反射的眼睛对准;（iii）在共焦图像上的总体眼睛引导;（iv）使用共焦图像对通过正面成像生成的B扫描图像中的正面移动进行校正。这种图像对的动画展示了该系统用于眼前节的体内成像的实用性。
We report a system capable of collecting pairs of en-face OCT and confocal images from the anterior chamber. Pairs of such images are collected from up to 7 mm deep in the anterior chamber measured from the top of the cornea. The wavelength is 85micrometers and the power 0.3 mW. The system offers: (i) versatility, being capable of displaying both C-scan OCT images (constant depth, oriented perpendicularly on the optic axis) as well as B-scan OCT images (containing the optic axis or longitudinal); (ii) eye alignment using the Purkinje reflections in the confocal channel; (iii) overall eye guidance, on the confocal image; (iv) correction for the en-face movement in the B-scan images generated by en-face imaging using the confocal image. Animations of such pairs of images demonstrate the utility of the system for in vivo imaging of the anterior segment of the eye.