An 18-year-old female patient applied to our clinic owing to sudden visual loss which started 3 days ago on the right eye. There were +3 cellsin the anterior chamber, +3 cells in the vitreous and multiple serous retinal detachment in the right eye. The anterior segment and fundus werenormal in the left eye. Optic disc leakage in both eyes and hyperfl uorescent areas due to subretinal fl uid pooling in the phase in the right eyewere detected in fundus fl uoresceine angiography. Hypofl uorescent foci were detected in the mid-late phase in both eyes in indocyanine greenangiography. A marked thick choroid (690 μm) in optical coherence tomography and decreased choriocapillaris fl ow rate in right eye comparedto left eye in optical coherence tomografi angiography were detected. Pleocytosis was detected in the lumbar puncture. Based on these fi ndings,the patient was diagnosed as bilateral asymmetric onset acute Vogt-Koyanagi-Harada and treated with 1 g intravenous pulse steroid treatment.On the third day of the pulse steroid treatment, the amount of subretinal fl uid signifi cantly decreased and choriocapillaris fl ow rate signifi cantlyincreased in the right eye and slightly increased in the left eye. On the 7th day, 1 mg / kg / day oral steroid and 100 mg azothiopurine treatmentwere started after complete resolution of subretinal fl uid and increase of visual acuity up to 0.5.