The main principle of adaptive optics technology is to enable the optical system to automatically adapt to changes in external conditions and maintain a good working state through real-time measurement control correction of optical wavefront error. It is composed of wavefront detector, wavefront controller and wavefront corrector. The wavefront detector can measure the optical wavefront error from the target or beacon near the target in real time. The wavefront controller processes the information of the optical wavefront error measured by the wavefront detector, and then transfers it to the wavefront corrector to facilitate the normal operation of the wavefront corrector. The wavefront corrector can quickly convert the information transmitted by the wavefront controller into the wavefront phase change to correct the wavefront distortion. At first, adaptive optics technology was only used in meteorology to solve the wavefront error caused by atmospheric turbulence. Until last century, adaptive optics technology was introduced into ophthalmology for imaging the retina of living eyes. Since then, adaptive optics technology has gradually developed in ophthalmology. Adaptive optics technology is widely used in fundus retinal imaging optical coherence tomography technology.