近视防控已经上升为国家战略，眼轴长度是近视防控的重要建档参数。眼轴长度的测量有多种方法，受到年龄、性别、脉络膜厚度等因素的影响。目前，眼轴长度的定义尚未统一，建议建立标准化的定义和方法学，以指导近视防控的临床和科研工作。

The prevention and control of myopia has become a national strategy, and the axial length is an important parameter in the documentation of myopia prevention and control. This review summarized the measurement technology and factors associated with axial length. Axial length can be measured in various ways and can be influenced by age, gender, choroidal thickness, and other factors. A standardized definition of axial length is warranted to be established for clinical and scientific purposes.

近视防控已经上升为国家战略，眼轴长度是近视防控的重要建档参数。眼轴长度的测量有多种方法，受到年龄、性别、脉络膜厚度等因素的影响。目前，眼轴长度的定义尚未统一，建议建立标准化的定义和方法学，以指导近视防控的临床和科研工作。

The prevention and control of myopia has become a national strategy, and the axial length is an important parameter in the documentation of myopia prevention and control. This review summarized the measurement technology and factors associated with axial length. Axial length can be measured in various ways and can be influenced by age, gender, choroidal thickness, and other factors. A standardized definition of axial length is warranted to be established for clinical and scientific purposes.