目的　比较测定正视和近视儿童的张力性调节（ＴＡ） 的两种方法。方法　应用计算机和示波器制成ＤＯＧ 视标， 再用ＤＯＧ 视标法和近注视检影法分别测定６７ 例（６７ 只眼） ９ ～１４ 岁儿童的ＴＡ 值。结果　正视儿童的ＴＡ 值显著大于近视儿童的ＴＡ 值； 两种方法都是测定儿童ＴＡ 的有效方法， 相关系数为０－７２ ， 但ＤＯＧ 视标法比近注视法更有效。结论　有较低ＴＡ 值的儿童可能比有较高ＴＡ 值的儿童更易发展成近视， 这对预防儿童近视有相当重要的意义 Objective To compare two methods of determining tonicity (TA) in children with frontal and myopia. Methods DOG optocamera was made by computer and oscilloscope. The TA values ​​of 67 children (67 eyes) aged 9 ~ 14 years were measured by DOG optometry and near vision fixation respectively. The results showed that children with TA value was significantly greater than the TA value of children with myopia; both methods are effective methods for the determination of TA in children, the correlation coefficient of 0-72, but DOG visual target method is more effective than near-sightedness. Conclusions Children with lower TA values ​​may develop myopia more easily than children with higher TA values, which is of considerable importance in the prevention of myopia in children