AIM:To report a case of Susac-syndrome (SS) in a 25 years old female with sudden peripheral visual field defects and hearing loss.·METHODS:A 25 years old female with sudden peri-pheral visual field defects and hearing loss was reported,and the correlations between retinal findings in ultra-widefield-angiography and presented visual field defects were documented.·RESULTS:Our patient presented the characteristic clinical triad of SS.Certain correlations between retinal findings in ultra-widefield-angiography and visual field defects could be shown.·CONCLUSION:Ultra-widefield-angiography has been proven to be a valuable tool to detect and follow peripheral lesions of SS in clinical management.