Georgiev Stefan, Kumar Abhishek, Findl Oliver, Hirnschall Nino, Niederleithner Michael, Kendrisic Milana, Drexler Wolfgang, Leitgeb Rainer A
Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Austria.
Vienna Institute for Research in Ocular Surgery, Hanusch Hospital, Vienna, Austria.
Biomed Opt Express. 2021 Oct 7;12(11):6762-6779. doi: 10.1364/BOE.430596. eCollection 2021 Nov 1.
Ocular aberrometry is an essential technique in vision science and ophthalmology. We demonstrate how a phase-sensitive single mode fiber-based swept source optical coherence tomography (SS-OCT) setup can be employed for quantitative ocular aberrometry with digital adaptive optics (DAO). The system records the volumetric point spread function at the retina in a de-scanning geometry using a guide star pencil beam. Succeeding test-retest repeatability assessment with defocus and astigmatism analysis on a model eye within ± 3 D dynamic range, the feasibility of technique is demonstrated at a B-scan rate of >1 kHz in comparison with a commercially available aberrometer.
眼像差测量是视觉科学和眼科领域的一项重要技术。我们展示了基于相位敏感单模光纤的扫频源光学相干断层扫描（SS-OCT）装置如何与数字自适应光学（DAO）一起用于定量眼像差测量。该系统使用导星笔形光束，以去扫描几何结构记录视网膜处的体积点扩散函数。在±3D动态范围内对模型眼进行散焦和散光分析的重测重复性评估之后，与市售像差仪相比，该技术在大于1kHz的B扫描速率下的可行性得到了证明。
