The accuracy and precision of objective refraction from wave-front aberrations are important in the clinical medicine about optometry and ophthalmology. Based on the wave-front aberration data from human eyes,the curvature distributions of wave-front aberration surface are computed,and the spherical and cylindrical objective refractions in pupil plane are obtained. The refractions in the plane located at spectacle lenses are calculated through ocular wave-front propagation. This method takes into account the influence of higher-order aberration on objective refractions of human eyes. By analyzing the difference between the objective refraction from wave-front aberration and the subjective refraction,the result reveals that the objective refraction with a 4 mm pupil is nearly to the subjective refraction. The mean sphere difference is 0.06D,the mean cylinder difference is -0.07D,and the mean cylinder axis difference is 0.62°. The results show that the objective refractions from wave-front aberration with a 4 mm pupil can be used to predict the subjective refraction actually.