The differences of the IPD between male and female and among 4 cities have no practical meaning in stipulating the sizes of children spectacle frames.

• 男性15岁和女性13岁瞳距已达到成人水平。儿童和青少年瞳距男与女性间差异和地区间差异对规范儿童眼镜架规格尺寸无实际意义。