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Radial keratotomy (RK) is a refractive surgical procedure to correct myopia (nearsightedness). It was developed in 1974 by Svyatoslav Fyodorov , a Russian ophthalmologist . It has been largely supplanted by newer, more accurate operations, such as photorefractive keratectomy , LASIK , Epi-LASIK and the phakic intraocular lens .
Radial keratotomy is a refractive surgery procedure where the surgeon makes a spoke-like pattern of incisions into the cornea to modify its shape. This early surgical option for myopia has been largely superseded by LASIK and other similar procedures.
All represent advances over radial keratotomy in the surgical treatment of refractive errors of vision. For people with moderate to high myopia or thin corneas which cannot be treated with LASIK or PRK, the phakic intraocular lens is an alternative. [4] [5]
Radial keratotomy (RK), developed by Russian ophthalmologist Svyatoslav Fyodorov in 1974, uses spoke-shaped incisions, always [clarification needed] made with a diamond knife, to alter the shape of the cornea and reduce myopia or astigmatism; this technique is, in medium to high diopters, usually replaced by other refractive methods.
Astigmatic keratotomy, arcuate keratotomy, or transverse keratotomy [clarification needed] Radial keratotomy; Hexagonal keratotomy [clarification needed] Epikeratophakia is the removal of the corneal epithelium and replacement with a lathe-cut corneal button. [15] Intracorneal rings or corneal ring segments [clarification needed] Implantable ...
There are also some pre-existing conditions that may complicate or preclude the treatment. [8] Collagen vascular disease (e.g., corneal ulceration or melting) Ocular disease (e.g., dry eye, keratoconus, glaucoma) Systemic disorders (e.g., diabetes, rheumatoid arthritis) History of side effects from steroids; Granular corneal dystrophy type II
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In the 1970s he developed the surgical technique he is most famous for, the radial keratotomy, to change the shape of the cornea and cure myopia. [2] In 1986, Fyodorov designed the first posterior chamber phakic IOL in the "collar-button" or "mushroom" configuration and manufactured the pIOL from silicone. In 1980 he became the head of the ...