Methods: 50 cases diagnosed with retinal vein occlusion(Group 1) and 50 healthy volunteers(Group 2) were included in our study. All patients underwent standard ophtalmological examination. Central corneal thickness (CCT) of all cases were measured with SD-OCT (Spectralis OCT,Heidelberg Engineering, Heidelberg, Germany). All analyzes were performed with the SPSS 22.0 package program. (p <0.05 was considered statistically signifi cant).

Results: In Central Retinal vein occlusion(CRVO) cases, the affected eye was calculated as SKK 523.4 +41.5 ?m while the healty one was calculated as SKK 525.1 +42.2 ?m. As for Hemicentral Retinal vein occlusion(HCRVO) cases, the affected eye was calculated as SKK 523.8 +38.3 ?m while the healty one was calculated as SKK 524.7 +39.4 ?m. There was statistically no significant difference between the affected eyes and healthy eyes of these 2 subgroups.(p=0.4 p =0.5, respectively).The mean of the control group was calculated as SKK 546.2+44.1 ?m. SKK values of the affected and healthy eyes of CRVO cases were considered statistically insignifi cant when compared to those of control group.(p=0.001 p=0.001 respectively).And SKK values of the affected and healty eyes of HRVO cases were considered statistically significant compared to those of control group ( p= 0,02 p= 0.02 respectively)

Conclusion: Patients with RVO diagnosis have signifi cantly thinner CCT than controls. Keywords : Anterior segment optic cohorence tomography, central cornea thickness, lamina cribrosa, retina vein occlusion