Recently,the microscopic retinal imaging in the human eye is becoming more and more important to diagnose disease (such as diabetes,nephropathy,etc.) and ophthalmology research.But the aberration of the eye limits the resolution of the imaging system.Fortunately,aberrations of the human eye can be corrected with adaptive optics [1].We can get diffraction-limited imagery using adaptive optics.In our laboratory,we have designed a retinal imaging system basing on Liquid Crystal Spatial Light Modulator (LC-SLM) as the wavefront corrector and successfully corrected the aberrations in vivo,obtaining the high-resolution retinal cell and vascular imagery [2-3].But we only obtain diffraction-limited imagery over a limited field of view (FOV) because this technology is limited by anisoplanatism.The small FOV is inconvenient to diagnose and treat disease.So in order to increase the clinical application,we should increase the FOV.In the recent years,some groups propose a method that is Multi-conjugate Adaptive Optics [MCAO] [4-5].