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A machine learning-based algorithm used to estimate the physiological elongation of ocular axial length in myopic children

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Eye and Vision 2020年第1期7卷 485-496页

作者： Tao Tang Zekuan Yu Qiong Xu Zisu Peng Yuzhuo Fan Kai Wang Qiushi Ren Jia Qu Mingwei Zhao Department of Ophthalmology&Clinical Centre of Optometry Peking University People’s HospitalBeijing 100044China College of Optometry Peking University Health Science CenterBeijingChina Eye Disease and Optometry Institute Peking University People’s HospitalBeijingChina Beijing Key Laboratory of the Diagnosis and Therapy of Retinal and Choroid Diseases BeijingChina Academy for Engineering&Technology Fudan UniversityShanghaiChina Department of Biomedical Engineering College of EngineeringPeking UniversityBeijing 100871China School of Ophthalmology and Optometry and Eye Hospital Wenzhou Medical UniversityWenzhouZhejiangChina

Background:axial myopia is the most common type of ***,due to the high incidence of myopia in Chinese children,few studies estimating the physiological elongation of the ocular axial length(AL),which does not cause myopia progression and differs from the non-physiological elongation of AL,have been *** purpose of our study was to construct a machine learning(ML)-based model for estimating the physiological elongation of AL in a sample of Chinese school-aged myopic ***:In total,1011 myopic children aged 6 to 18 years participated in this ***-sectional datasets were used to optimize the ML *** input variables included age,sex,central corneal thickness(CCT),spherical equivalent refractive error(SER),mean K reading(K-mean),and white-to-white corneal diameter(WTW).The output variable was AL.A 5-fold cross-validation scheme was used to randomly divide all data into 5 groups,including 4 groups used as training data and one group used as validation *** types of ML algorithms were implemented in our *** best-performing algorithm was applied to predict AL,and estimates of the physiological elongation of AL were obtained as the partial derivatives of AL_(predicted)-age curves based on an unchanged SER value with increasing ***:Among the six algorithms,the robust linear regression model was the best model for predicting AL,with a R^(2) value of 0.87 and relatively minimal averaged errors between the predicted AL and true *** on the partial derivatives of the AL_(predicted)-age curves,the estimated physiological AL elongation varied from 0.010 to 0.116 mm/year in male subjects and 0.003 to 0.110 mm/year in female subjects and was influenced by age,SER and *** to the model,the physiological elongation of AL linearly decreased with increasing age and was negatively correlated with the SER and the ***:The physiological elongation of the AL is rarely recorded in clinical data in

关键词： Myopia Myopia progression Machine learning ocular axial length Physiological elongation Orthokeratology

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