The characteristics of fluorescein angiography and optical coherence tomography of macular edema secondary to retinal vein occlusion / 第二军医大学学报

ABSTRACT

Objective To analyze the characteristics of fluorescein angiography (FA) and optical coherence tomography (OCT) of macular edema (ME) secondary to retinal vein occlusion (RVO), so as to provide evidence for the clinical management of RVO. Methods Totally 75 RVO patients (75 eyes) underwent best corrected visual acuity (BCVA), funduscopy, fundus photography, FA and OCT examination. The correspondence between FA findings and OCT findings for ME and their relationship with BCVA were analyzed. Results It was found that ME occurred in 56 of the 75 eyes. The occurrence of ME was irrelevant to gender and age. Retinal thickness of the central fovea of macula was positively related to logMAR vision(R2=0.322,P=0.001). ME types were mostly FA type 3 and OCT type 2. The vision of FA type 1 was the best and that of OCT type 4 was the worst. There was a certain correspondence between FA type and OCT type with OCT type 1 usually manifested as FA type 1 and OCT type 2 usually as FA type 3,and FA type 4 had no correspondence to a certain OCT type. ConclusionCystic macular edema is the main presentation of ME secondary to RVO. Different FA types, OCT types and central fovea thickness reflect different visual acuity. There is a certain correspondence between FA types and OCT types, but OCT can not identify ischemia in cystic macular edema. A combination of FA and OCT may help to further distinguish different types of ME before treatment.