摘要
目的 :观察波前像差引导的LASIK术矫正人眼像差后的效果 ,以确定人眼是否可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个月时 ,4只眼 (占 2 7% )获得了 2 0 /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 .0 5 )。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。
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.
出处
《眼视光学杂志》
2001年第2期69-71,共3页
Chinese Journal of Optometry & Ophthalmology
关键词
像差
波前像差
激光手术
近视
散光
LASIK
aberration
wavefront aberration
LASIK/therapeutic use
refraction,ocular
myopia/therapy
astigmatism/therapy
