AIM: To investigate the dilation effect of computer optometry and retinoscopy optometry before and after mydriasis in children and to understand whether the application of computer refractor in children.

METHODS: Therelated data of 500 children cases(1 000 eyes)with ametropia in our hospital were analyzed. The children firstly received computer optometry, and then use the 10g/L atropine sulfate eye gel drops, respectively. After 3d, they were performed computer optometry and retinoscopy, and compared the effect of two refraction.

RESULTS: Spherical reading of computer optometry group was 2.70±2.75DS, cylinder degree was 1.54±1.10DC, were lower than those of retinoscopy group(P<0.05). The two groups has no significantly different axis position(P<0.05). spherical reading of computer optometry group was -2.35±2.18DS, cylinder degree was -1.50±1.15DC, less than those of retinoscopy group(P<0.05). The two groups under axial difference was not significant(P>0.05). Before mydriasis, astigmatism was 1.54±1.10D, astigmatic axis was(14.38±11.11)°. After mydriasis, astigmatism was 1.45±1.21D and astigmatic axis was(12.78±10.31)°, significantly higher than those of retinoscopy(P<0.05). The absolute value of the difference measured by two spherical refraction method was between ≤0.50D, accounting for 75%(350/500), ≤1.00D accounting for 77.4%(387/500), and 409 cases ≤0.50D, accounting for 81.8%.

CONCLUSION: Children optometry concerns the visual development of children. Computer optometry and retinoscopy are the pros and cons. As for computer optometry can not replace retinoscopy optometry, it can be used as an auxiliary tool for fast optometry.