1. Retinal imaging with optical coherence tomography and low‐loss adaptive optics using a 2.8‐mm beam size

    Retinal imaging with optical coherence tomography and low‐loss adaptive optics using a 2.8‐mm beam size

    As data acquisition for retinal imaging with optical coherence tomography (OCT) becomes faster, efficient collection of photons becomes more important to maintain image quality. One approach is to use a larger aperture at the eye’s pupil to collect more photons that have been reflected from the retina. A 2.8‐mm beam diameter system with only 7 reflecting surfaces was developed for low‐loss retinal imaging. The larger beam size requires defocus and astigmatism correction, which was done in a closed loop adaptive optics method using a Shack‐Hartmann wavefront sensor and a deformable mirror with 140 actuators and ...

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