·AIM:To observe macula changes in patients after cataract phacoemulsification by optical coherence tomography(OCT).·METHODS:Fifty-six patients were included in this study.The uncomplicated phacoemulsification was performed.OCT was examined preoperatively,1 month and 3 months after surgery.Preoperative visual acuity,the retinal thickness were compared with those after surgery.·RESULTS:Preoperative and 1 month after surgery,the mean foveal thickness was(241.3±9.9)μm and(260.7±16.8)μm,with significant difference(P=0.000).The mean foveal thickness was(245.6±17.6)μm 3 months after surgery without significant difference compared with preoperative(P=0.137).two eyes displayed cystoid macular edema at 1 month after surgery and 1 eye of them was resolved 3 months after surgery.·CONCLUSION:The retinal thickening and macular edema can be found 1 month after uncomplicated cataract phacoemulsification.Three months Postoperatively,macular edema disappears and does not show significant difference compared with preoperative.·