Three-dimensional imaging of the human retina by high-speed optical coherence tomography

摘要: Conventional optical coherence tomography is based on A-scans, i.e., the fast scan direction z-direction. While this technique has been successfully demonstrated for two-dimensional cross sectional imaging of various tissues, it rather slow if three-dimensional information to be obtained. We report a new that combines transverse scanning approach confocal laser ophthalmoscope with depth sectioning capability OCT. A stable high-frequency carrier generated by use an acousto optic modulator, and high frame rate obtained using resonant mirror priority (x-direction). Our prototype instrument records 64 images consisting 256x128 pixels in 1.2 seconds, thus providing fastest retinal 3D OCT system reported so far. demonstrate capabilities our measuring fovea nerve head region healthy human volunteers vivo.