presbyopic glasses

AIM: To evaluate the therapeutic effects of using prism effect in the correction of muscular asthenopia by changing optical center of presbyopic glasses.

目的：应用改变近用老视镜的光学中心所产生的三棱镜效应，消除老视患者近距离阅读和工作的肌性视疲劳。

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· METHODS: The diopter, fusion, degree of phoria of patients with symptoms of muscular asthenopia after wearing presbyopic glasses were examined, and then they were diagnosed to have muscular asthenopia.

方法：对戴用近用眼镜后仍有视疲劳症状的患者，进一步检查屈光情况、隐斜度、融合力，确定为肌性视疲劳。

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The prism effect produced by moving optical center of presbyopic glasses was put on the right and left lenses averagely by 1/ 2-1/ 3 degree of exophoria.

通过移动老视镜的光学中心的方法，产生三棱镜效应，按外隐斜度数的1/2～1/3给予三棱镜度，平均加在左右2眼。

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Europeans invented the presbyopic glasses in the13th century, which used to help people to rectify their vision. Subsequently, they invented the myopia glasses.

十三世纪末，欧洲发明了可矫正视力的老花眼镜，稍后发明了近视眼镜。

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The old man often wears a pair of presbyopic glasses when he reads newspaper.

那个老人看报纸的时候常常戴着一副老花镜。

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Does false myopia wear presbyopic glasses to restore to get vision not?

假近视戴老花镜恢复得视力不?

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Types of presbyopic glasses used by scholars are exhibited in the museum.

在博物馆里陈列着以前文人们用过的各式各样的老花镜.

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