AIM OF WORK: 1. measure CCT by SD-OCT healthy eyes and compare it with the CCT obtaind by Scheimpflug camera and AC Master. 2. describe the application of SD-OCT to cross-sectional imaging of corneal pathologies. CONCLUSION: SD-OCT is non invasive imaging method that allowed high-resolution, descriptive morphological evaluation of the corneal structure and a wide range of corneal pathologies. The CCT measurement with SD-OCT showed a very good correlation with both Scheimpflug camera and AC Master and could be used as an alternative in the CCT.<eng>