Wavefront aberration guided excimer laser cornea ablation is a main method of customised corneal ablation.Compared to traditional refractive errors correcting,the principle and technique are quite different.Based on the concept of human eye wavefront aberration,the paper studied Zernike polynomials to represent the aberrated wavefront in the pupil and fitted the data to a Zernike series to reconstruct the wavefront aberrations of living human eye.The relationship between second-order Zernike coefficients and conventional spectacles was also observed.We verfied that wavefront aberration guided excimer laser cornea ablation surgery is feasible and precise which provide a theory foundation for correcting the low order and the high order aberration of the human eyes.In this study,the theory combined with experiment was adopted,it calibrated the mathematics relation between the ablation depth and aberration at special corneal position.The experiments results showed:there is some relation existed betwecn second-order Zernike coefficients and traditional refractive errors which can calibrate aberration guided cornea ablation,and the human eyes aberration can be corrected.
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