- 著者
-
Jaillon Franck
Makita Shuichi
Yasuno Yoshiaki
- 出版者
- Optical Society of America
- 雑誌
- Optics Express (ISSN:10944087)
- 巻号頁・発行日
- vol.20, no.1, pp.385-396, 2012-01
- 被引用文献数
-
24
13
In this study, we present dual-beam Doppler optical coherence angiography with variable beam separation. Altering beam distance, independently of the scanning protocol, provides a flexible way to select the velocity range of detectable blood flow. This system utilized a one-micrometer wavelength light source to visualize deep into the posterior eye, i.e., the choroid. Two-dimensional choroidal vasculature maps of a human subject acquired with different beam separations, and hence with several velocity ranges, are presented. Combining these maps yields a semi-quantitative visualization of axial velocity of the choroidal circulation. The proposed technique may be useful for identifying choroidal abnormalities that occur in pathological conditions of the eye.