AIM: To evaluate the accuracy of qualitative prediction of cataract surgery by double-pass optical quality analysis system(OQAS^TMⅡ).

METHODS: A retrospective study was conducted. Totally 57 cataract patients(67 eyes)were randomly selected from October 2018 to December 2018 in Renmin Hospital of Wuhan University. According to the objective scattering index(OSI), they were divided into group A(28 eyes, OSI>8.0), group B(28 eyes, OSI≤8.0), and group C(11 eyes, OSI could not be detected due to severe lens opacity). The effect of surgery was predicted by Predicted VA100% and preoperative BCVA.

RESULTS: In group A, 26 eyes(93%)comply with the standard, and in group B, 24 eyes(86%)comply with the standard. There was no significant difference between the two groups(P=0.669). Besides, no correlation was found between Predicted VA100% and postoperative 2wk BCVA(r_s=0.103, P>0.5).

CONCLUSION: The OQAS^TMⅡ system can objectively, accurately and intuitively predict the effect of cataract surgery.