Radial keratotomy (RK) is a refractive surgical procedure to correct myopia (nearsightedness) that was developed in 1974, by Svyatoslav Fyodorov, a Russian ophthalmologist.
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encyclopedia
Radiosurgery is surgery using radiation, that is, the destruction of precisely selected areas of tissue using ionizing radiation rather than excision with a blade.
Renal biopsy (also kidney biopsy) is a medical procedure in which a small piece of kidney is removed from the body for examination, usually under a microscope.
A Rhinectomy is the surgical removal of a nose.
Rhinoplasty (ῥίς rhis, nose + πλάσσειν plassein, to shape), commonly known as a nose job, is a plastic surgery procedure for correcting and reconstructing the form, restoring the functions, and aesthetically enhancing the nose by resolving nasal trauma (blunt, penetrating, blast), congenital defect, respiratory impediment, or a failed primary rhinoplasty.