{"id":1980,"date":"2018-04-27T10:14:29","date_gmt":"2018-04-27T09:14:29","guid":{"rendered":"https:\/\/presbytie-lasik.fr\/?page_id=1980"},"modified":"2024-07-17T09:33:07","modified_gmt":"2024-07-17T08:33:07","slug":"photo-refractive-keratectomy-prk-under-40","status":"publish","type":"page","link":"https:\/\/presbytie-lasik.fr\/en\/photo-refractive-keratectomy-prk-under-40\/","title":{"rendered":"Photo Refractive Keratectomy (PRK) under 40"},"content":{"rendered":"

BOOK AN APPOINTMENT<\/span><\/a><\/div><\/div><\/div><\/div><\/div>\n

PRK<\/h1>\n

Same results as LASIK, with a broader suitability range<\/span><\/h4>\n<\/div>
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Are you suitable?<\/span><\/a><\/div>
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BOOK AN APPOINTMENT<\/span><\/a><\/div>
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Summary of\u00a0 PRK<\/h2>\n<\/div>
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  • The cornea is the transparent porthole in front of the eye<\/em><\/li>\n
  • Its thickness varies between 450 and 600 microns (a human hair is approximately 50 microns in diameter)<\/em><\/li>\n
  • The more the cornea is “curved”, the higher its dioptric power is necessary and vice versa<\/em><\/li>\n
  • As a result, increased curvature of the cornea corrects hypermetropia and flattening of the cornea corrects myopia<\/em><\/li>\n
  • It is from these principles that, in the sixties, Jos\u00e9 Barraquer theorized and developed corneal refractive surgery from which modern ophthalmologists derived PRK<\/em><\/li>\n
  • The term PRK is the abbreviation of “Photo Refractive Keratectomy” – keratectomy meaning removing a portion of the cornea<\/em><\/li>\n
  • Ophthalmologists have practised PRK since 1978<\/em><\/li>\n
  • PRK can correct myopia, hyperopia, astigmatism and presbyopia (when used with PRESBYLASIK)<\/em><\/li>\n
  • PRK is a virtually painless procedure performed under anaesthesia by simple instillation of eye drops<\/em><\/li>\n
  • The typical visual recovery after PRK is 7 days<\/em><\/li>\n<\/ul>\n<\/div><\/div><\/div>
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    Photo Refractive Keratectomy (PRK) – An introduction<\/h2><\/h2><\/div>

    LASIK is a surgical technique that consists of using an Excimer laser to reshape the area of the cornea to modify the radius of curvature and therefore power. In PRK, or “Photo Refractive Keratectomy” (keratectomy means removal of a portion of the cornea), we apply the laser after removing the epithelium (very top layer) of the cornea.<\/p>\n

    The PRK procedure:<\/p>\n

    The procedure is quick; it takes less than half an hour for both eyes. We perform PRK under local area anaesthesia by instilling eye drops. PRK is painless. It is not necessary to come on an empty stomach for this type of anaesthesia and intervention.<\/p>\n