单词	keratotomy
释义	keratotomy /ˌkɛrəˈtɒtəmi / noun [mass noun] A surgical operation involving cutting into the cornea of the eye. The most common form is radial keratotomy, performed to correct myopia.Radial keratotomy, which involves making deep incisions in the cornea, is rarely performed today.... Myopia has been corrected for many years by radial keratotomy (radial corneal incisions), though this has few proponents in Britain. For readers out there considering eye surgery, PRK or LASIK is superior to radial keratotomy.
随便看	permissivism permissivist permissory permit permitable permit me permittable permittance permitted hours permittee permitter permittivity permix permixed permixtion Permo-Pennsylvanian Permo–Carboniferous Permo–Triassic permsec perm. sec. permselective permselectivity permutability permutable permutably

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