Dual-camera Three-dimensional Automatic Tracking for a Human Eye Adaptive Optics System

Adaptive optics (AO) has been widely used to measure and regulate human eye aberrations in real time. However, involuntary eye movement will restrict the working ability of the AO system severely. Thus, we propose a dual-camera three-dimensional (3D) automatic tracking technique for the AO system. In this paper, the basic principle of 3D tracking eye positioning and pupil tracking was introduced. The accuracy and feasibility were verified by practical experiments. The results show that the averaged root mean square error of higher-order aberrations from eight subjects is decreased by 11.5%, and the fluctuation variance is decreased significantly.