波前像差引导的LASIK术矫正眼球像差

目的：观察波前像差引导的LASIK术矫正人眼像差后的效果，以确定人眼是否获得超过一般的视敏度。方法：波前像差引导的LASIK手术对15只眼矫正近视和散光，同时矫正眼球的像差。结果：手术后1个月，4只眼（占27％）获得了20／10以上的超常视力。波前像差的均方根值从0．6增加到2．3，与视觉敏感度的提高呈显著性相关（P＜0．05）。结论：像差的矫正虽然还不能最令人满意，但这些结果表明，眼球的像差使人眼视敏度受限制，而通过手术矫正可获得超过一般的视敏度。

Operative correction of ocular aberrations to improve visual acuity

Objective:Optical aberrations of the human eye degrade the quality of the retinal image and may,therefore,represent a major limit of visual acuity.Methods:In 15 eyes,ocular aberrations were corrected in addition to myopia and astigmatism by means of wavefront guided laser in situ keratomileusis(LASIK).Results:At 1 month after surgery,a supernormal visual acuity of 20/10 or better was obtained in 4 eyes(27%). The increase in root mean square wavefront error ranged from 0.6 to 2.3 and was significantly correlated with the increase in visual acuity(P<0.05).Conclusion:Although the correction of aberrations was not yet optimal,these results show that ocular optical aberrations limit visual acuity in humans and supernormal visual acuity can be achieved by operative correction.