Influence of wavefront aberration of combined Zernike modes on optical quality of human eyes

Based on AreaMTF, SRX and PFWc, which are objective criterions of optical quality of human eyes, the influence of wavefront aberration of combined Zernike modes on optical quality was investigated with the RMS wavefront aberration 0.25μm. The results show that the influence on the optical quality of human eyes is different with different Zernike modes combination. When two Zernike modes are combined, the maximums of AreaMTF and SRX exist in the aberration ratio range from 1.33 to 4.90 for C4 (defocusing) and C12 (sphere aberration), and those minimums exist in the aberration ratio range from 0.20 to 1.00 for C6 (trefoil) and C7 (coma). When the second order Zernike modes (defocus and astigmatism) are combined, defocusing plays the leading role. When the third order Zernike modes (coma and trefoil) are combined, the change ranges of the values of SRX and PFWc are all large, namely, from 0.066 to 0.228 and from 0.048 to 0.656 respectively.