作者: Qi Li , Qiushi Ren
DOI: 10.1117/12.575900
关键词: Statistics 、 Linear regression 、 Refraction 、 Graduated cylinder 、 Coherence (signal processing) 、 Optics 、 Astigmatism 、 Mathematics 、 Subjective refraction 、 Correlation 、 Wavefront
摘要: Three optometry methods which include auto-refractor, wavefront aberrometer and subjective manual refraction were studied compared in measuring low order aberrations of 60 people’s 117 normal eyes. Paired t-test linear regression used to study these three methods’ relationship when myopia with astigmatism. In make the analysis more clear, we divided eyes into different groups according their redid statistical analysis. Correlations among show significant sphere, cylinder axis all groups, sphere’s correlation coefficients largest(R>0.98, P 0.01). Auto-refractor had change from other two (P<0.01). The results after grouping differed a little total people. Although showed each certain parameters, amplitude differences not large, indicated that coherence is good. However, suggested aberration measurement could be good starting point optometry, still necessary for refinement.