Introduction　Conductive　Keratoplasty　(CK)　induce　refractive　change　of　comea　by　peripheral　deformation[1].　The　pred　ictability　of　CK　is　still　unsatisfactory,　partly　due　to　wound-heating　response　and　refractive　regression　[2].　Because　the　same,　Mery　operation　was　performed　on　comeas　of　different　curvature　[3　4,　we　infer　that　different　curvature　of　comea　may　be　one　of　the　reasons　for　diverse　surgery　results.　In　this　paper,　the　effect　of　different　curvature　of　comea　on　corrected　power　of　conductive　keratoplasty　was　evaluated.　Methods　Mathematical　analysis　was　done　on　the　assumption　that　front　surface　of　deformation　zone　of　comea　is　spherical　before　and　after　surgery,　back　surface　of　comea　is　stable　before　and　after　surgery.　Results　After　surgical　deformation,　relative　change　of　refractive　power　of　front　surface　of　comea　Delta　phi/phi　=(R-r)/r=Delta　R/h,　where　R　is　curvature　radius　of　front　surface　of　comea　before　surgery,　r　is　that　after　surgery,　Delta　R　is　the　deformation　of　comea　at　location　of　surgical　operation,　h　is　the　difference　of　height　between　apex　of　cornea　and　location　of　surgical　operation.　Absolute　change　of　refractive　power　of　comea　Delta　phi　approximate　to-2(n-1)Delta　R/L-2,　where　n　is　refractive　index　of　comea,　L　is　the　distance　from　the　location　of　surgical　operation　to　the　axis　of　comea.　Calculation　by　the　above　formula　with　operation　values　of　actual　surgery　shows　that　the　absolute　theoretical　errors　will　be　less　than　0.1　diopter.　Thus,　refractive　power　change　of　cornea　induced　by　peripheral　deformation　has　linearity　relationship　with　deformation　and　change　rapidly　with　surgery　location,　but　it　is　almost　stable　with　different　curvature　of　comea.　Conclusion　Both　deformation　and　surgery　location　are　parameters　related　to　surgery　response,　surgery　regression　and　surgery　operation.　Hence,　different　surgery　response,　surgery　regression　and　unsatisfactory　precision　of　surgery　operation　are　main　causes　for　unsatisfactory　predictability　of　such　surgery.　New　work　to　be　presented　Theoretical　analysis　shows　that　different　curvature　of　comea　has　little　effect　on　corrected　power　of　conductive　keratoplasty.