Study on diopter prediction model for civil aviation recruitment in China
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目的 探讨民航招飞现行眼科标准中，散瞳前电脑验光屈光度预测散瞳后检影验光屈光度的准确性，评价现行招飞标准中“超出标准0.75 D及以上”为评定界限的合理性，并为调整招飞屈光度标准提供科学依据。 方法 采取整群抽样法选取2017年至2021年参加中国民航飞行学院四川地区招飞体检的学生，包括高中生及大学生改飞行驾驶的学生；收集其散瞳前电脑验光及散瞳后检影验光的屈光度值，以散瞳前电脑验光屈光度为自变量拟合回归模型，用于预测散瞳后检影验光的屈光度值。 结果 共纳入参加招飞体检学生2 567名，均为男性，平均年龄为（18.20±1.47）岁。散瞳前电脑验光屈光度与散瞳后检影验光屈光度存在高度相关（rs=0.856，P<0.001）。依据回归模型计算散瞳后检影验光屈光度预测区间，散瞳前电脑验光屈光度可解释散瞳后检影验光屈光度变异程度的80.5%。散瞳前电脑验光屈光度为［-7.000，+1.500］D时，该模型预测准确率≥83.3%，拟合效果较好。当散瞳前电脑验光屈光度高于-6.125 D时，95%预测区间值均高于-4.500 D，即超出招飞标准。 结论 对于近视学生，散瞳前电脑验光屈光度超出-6.125 D者，散瞳后检影验光屈光度预测值均超出现行招飞标准，建议将标准中对应条目修改为“超出标准1.750 D及以上者，可终止受检者进行其他检查”。 Objective To explore the accuracy of computer optometric diopter before mydriasis in predicting artificial optometric diopter after mydriasis in the current ophthalmic standard of civil aviation recruitment, to evaluate the rationality of "0.75 D or more beyond the standard" in the current recruitment standard, and to provide a scientific basis for adjusting the recruitment diopter standard. Methods Cluster sampling was used to select students recruited by Civil Aviation Flight University of China in Sichuan area from 2017 to 2021, including high school students and college student candidates. The values of computer optometric diopter before mydriasis and optometric diopter after mydriasis were collected, and the linear regression model was fitted to predict the optometric diopter value after mydriasis with computer optometric diopter before mydriasis as independent variable. Results A total of 2 567 recruited students, all male, with an average age of (18.20±1.47) years were enrolled in the physical examination. There was a high correlation between computer optometric diopter before mydriasis and optometric diopter after mydriasis (rS=0.856, P<0.001). After linear regression fitting and calculation of the predicted range of post-dilated optometric diopter, it was found that pre-dilated computer optometric diopter could explain 80.5% of the variation degree of post-dilated optometric diopter. When the computer optometric diopter before mydriasis was in the range of [-7.000,+1.500] D, the prediction accuracy of this model was ≥83.3%, and the fitting effect was good. When the computer optometric diopter before mydriasis was higher than -6.125 D, the prediction interval of 95% was higher than -4.500 D, which was beyond the recruitment standard. Conclusions For myopic students, the predicted value of post-dilated optometric diopter exceeds the current recruitment standard if the computer optometric diopter before mydriasis exceeds -6.125 D. It is suggested to amend the corresponding item in the standard to "if the diopter exceeds 1.750 D or more, the subject can be terminated other examinations".
Objective To explore the accuracy of computer optometric diopter before mydriasis in predicting artificial optometric diopter after mydriasis in the current ophthalmic standard of civil aviation recruitment, to evaluate the rationality of "0.75 D or more beyond the standard" in the current recruitment standard, and to provide a scientific basis for adjusting the recruitment diopter standard. Methods Cluster sampling was used to select students recruited by Civil Aviation Flight University of China in Sichuan area from 2017 to 2021, including high school students and college student candidates. The values of computer optometric diopter before mydriasis and optometric diopter after mydriasis were collected, and the linear regression model was fitted to predict the optometric diopter value after mydriasis with computer optometric diopter before mydriasis as independent variable. Results A total of 2 567 recruited students, all male, with an average age of (18.20±1.47) years were enrolled in the physical examination. There was a high correlation between computer optometric diopter before mydriasis and optometric diopter after mydriasis (rS=0.856, P<0.001). After linear regression fitting and calculation of the predicted range of post-dilated optometric diopter, it was found that pre-dilated computer optometric diopter could explain 80.5% of the variation degree of post-dilated optometric diopter. When the computer optometric diopter before mydriasis was in the range of [-7.000,+1.500] D, the prediction accuracy of this model was ≥83.3%, and the fitting effect was good. When the computer optometric diopter before mydriasis was higher than -6.125 D, the prediction interval of 95% was higher than -4.500 D, which was beyond the recruitment standard. Conclusions For myopic students, the predicted value of post-dilated optometric diopter exceeds the current recruitment standard if the computer optometric diopter before mydriasis exceeds -6.125 D. It is suggested to amend the corresponding item in the standard to "if the diopter exceeds 1.750 D or more, the subject can be terminated other examinations".
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