Objective To study the normal strehl ratio (SR) values of total aberrations and the SR values of total higher order aberrations on the anterior corneal surface of myopic eyes with different pupil diameters; to study the relationship between SR values and the modulation transfer function (MTF).Methods It was a cross-sectional study.The SR values of total aberrations and total higher order aberrations of the anterior corneal surfaces of 200 people (400 eyes) were examined with a SIRIUS 3D topography system.One-way ANOVA aualysis was used to compare the SR values of total aberrations and total higher order aberrations of the anterior corneal surface for different pupil diameters (3.0,5.0,6.0,7.0 mm).A Pearson correlation analysis was used to study the relationship between the two types of SR values and the corresponding root mean square (RMS) values; and the relationship between SR values of the total aberrations and corresponding MTF values.Results The results for different pupil diameters (3.0,5.0,6.0,7.0 mm) of the anterior corneal surface were as follows:the SR value of total aberrations 100' (0.46±0.13)-(0.14±0.03); the SR value of total higher order aberrations 100' (0.69±0.15)-(0.17±0.04); the SR value of total aberrations 200' (0.45±0.13)-(0.16±0.04); and the SR value of total higher-order aberrations 200' (0.70±0.15)-(0.20±0.05).The SR values of each group decreased with an increase in pupil diameter.The SR values of total aberrations and total higher-order aberrations on the anterior corneal surface were negatively correlated with the corresponding RMS values.When the pupil diameter was small,the SR value of total aberrations was more closely related to the higher frequency region of the MTF.When the pupil diameter was large,the SR value of total aberrations was more closely related to the lower frequency region of the MTF.Conclusion The SR values of total aberrations and total higher-order aberrations on the anterior corneal surface in myopic eyes are negatively correlated with pupil diameter.There is a certain correlation between SR values and the corresponding RMS and MTF values.