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4岁宝宝正常眼睛眼轴是多少
更新时间： 2020-11-05 00:00:00  

4岁宝宝正常眼睛眼轴是21.0到21.4mm之间。眼轴由角膜正中到视神经与视网膜黄斑中心窝之间的一条假设线，称眼轴。长22～27毫米，平均为24毫米。沿此轴可作眼球的内旋、外旋运动。眼轴又称前后轴、矢状轴、y轴、几何轴、光轴、主轴、长轴、视准轴、准直轴、光学同心轴、同心共轴、光学轴、主要轴、中心轴、旋转轴。

关键词： 宝宝 正常 眼睛 多少

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