Abstract: WAGCA（wavefront aberration guided cornea ablation）is a corneal refractive surgery method for wavefront-guided ablation. The purpose of this research was to determine the corneal contribution to the aberrations of the human eyes, and to create an ideal correction. The research will lead to "perfect" vision , "supervision" vision, "eagle" vision, "aberration" vision, it can reduce aberrations and eliminate night vision problems caused by PRK/LASIK surgery. The concept of the human aberration was presented and the cause of aberration was analysesd. We applied Zernike polynomials to describe the shape of an aberrated wavefront in the pupil of an optical system fitted the data to a Zernike series to reconstruct the wavefront aberrations of living human eye. With the expressions aberration guided cornea ablation depth, mechanism of action of excimer laser corneal surgery, the schema of the excimer laser aberration correction system, our expreiments results show WAGCA can reduce wavefront aberration.