The purpose of this study is to investigate the correlation between the central corneal thickness and peripheral one, and the changing aspect of corneal thickness by the refractive error through the measure of central corneal thickness and peripheral one in myopic eyes. For this study, the central thickness and the peripheral one of the 198 eyes of 99 normal subjects was measured by Orbscan Topography System(Orbtex, Inc. USA). The latter was measured in each 2mm point distance of superior, inferior, nasal and temporal from the center of left & right eye. And the revealed results was analyzed according to sex, age, left & right eyes, and refractive error of the subjects. The mean central corneal thickness of the whole subjects was shown as $530.12{pm}43.18{mu}m$, and the mean peripheral ones were as follows : superior(SCT) $591.91{pm}36.88{mu}m$, inferior(ICT) $561.04{pm}41.82{mu}m$, nasal(NCT) $584.23{pm}41.97{mu}m$ and temporal(TCT) $567.35{pm}43.25{mu}m$. From this, we can see that the mean central corneal thickness and the peripheral ones show significantly difference, but there is no statistically Significant difference in the corneal thickness according to refractive error, age, sex, and left & right.