Title: Higher order aberration and visual quality analysis in myopic astigmatism eyes
Abstract: Objective:To investigate relationship between higher order aberrations and visual quality in myopic astigmatism eyes,offer clinic data in selecting persons who need wavefront guided custom ablation.Methods:66 subjects 132 myopic astigmatism eyes were observed,n=132,age(23.16±4.87)yr,range 19~41 yr;myopic diopter(-6.82±1.38)D,range -3.715~-9.325 D;astigmatic diopter(-0.71±0.51)D,range -0.08~-2.855 D. Manifest refraction were measured by phoropter;best spectacle corrective contrast sensitivity were measured by CSV 1000;aberrations were measured and analyzed by Allegretto Wavefront Analyzer.Results:①There is significant correlation between sphcl and high frequency(18 cyc/deg) contrast sensitivity(r=-0.196,P=0.025),coma has not showed any relationship with contrast sensitivity(P0.05).②The analysis of factors associated with aberrations show myopia correlated significantly with sphcl and coma(r=-0.502,P=0.000;r=-0.281,P=0.001);astigmatism also display obvious relationship with sphcl and coma(r=-0.241,P=0.005;r=-0.176,P=0.043).Conclusion:Higher myopic astigmatism will affect sphcl aberration,high sphcl aberration influent high frequency visual quality,it indicates that high myopia,high astigmatism and high sphcl aberration will benefit from wavefront guided coustom ablation.
Publication Year: 2002
Publication Date: 2002-01-01
Language: en
Type: article
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