System and method for making flaps using polarization sensitive optical coherence tomography

摘要

The present disclosure provides systems and methods for creating flaps during laser eye surgery using polarization sensitive optical coherence tomography (PS-OCT). The system includes a PS-OCT system, a femtosecond laser, a controller, and a processor. The PS-OCT system includes a PS-OCT source, a polarization component, a reference reflector, a beam splitter, a wave plate, and a detector. The processor receives data regarding the interference pattern of the reflected PS-OCT beam received at the detector, identifies the relative fiber orientation of the sample, and horizontally translates the photodisruption pattern generated by the femtosecond laser to create a flap. Alternatively, whether to adjust vertically may be specified based on the relative fiber orientation, and a control signal for adjusting the photodisruption pattern generated by the femtosecond laser may be generated. The present disclosure further provides a method of creating a flap in an eye using PS-OCT.