Method The root-mean-square(RMS)values of the HOA were measured with Allegretto wave analyzer before and 1 hour after nearwork,and the correlation of HOA values and the development of myopia were observed.

• 方法被检者近距离(20cm)阅读1小时,用Allegretto波前像差仪测量患者阅读前后的波前像差,观察高阶像差的变化,并与被检者一年中屈光度的变化做相关分析；