{"id":378,"date":"2024-03-20T17:34:54","date_gmt":"2024-03-20T16:34:54","guid":{"rendered":"https:\/\/cecchinipaolo.it\/treatments\/correction-of-myopia-hyperopia-astigmatism\/"},"modified":"2024-03-23T17:28:24","modified_gmt":"2024-03-23T16:28:24","slug":"correction-of-myopia-hyperopia-astigmatism","status":"publish","type":"page","link":"https:\/\/cecchinipaolo.it\/en\/treatments\/correction-of-myopia-hyperopia-astigmatism\/","title":{"rendered":"Correction of myopia, hyperopia, astigmatism"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"378\" class=\"elementor elementor-378 elementor-242\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3cba1a7e elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3cba1a7e\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3942e179\" data-id=\"3942e179\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-33767c5f elementor-widget-divider--view-line_text elementor-widget-divider--element-align-left elementor-widget elementor-widget-divider\" data-id=\"33767c5f\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t\t<h2 class=\"elementor-divider__text elementor-divider__element\">\n\t\t\t\tLaser correction of myopia, hyperopia, astigmatism\t\t\t\t<\/h2>\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-334e513 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"334e513\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wider\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-c5c4cca\" data-id=\"c5c4cca\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-b173145 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b173145\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-7f71481\" data-id=\"7f71481\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-40b6571 elementor-widget elementor-widget-heading\" data-id=\"40b6571\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Treatments:<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-75ab729 elementor-widget elementor-widget-spacer\" data-id=\"75ab729\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cce049f elementor-nav-menu--dropdown-tablet elementor-nav-menu__text-align-aside elementor-nav-menu--toggle elementor-nav-menu--burger elementor-widget elementor-widget-nav-menu\" data-id=\"cce049f\" data-element_type=\"widget\" data-settings=\"{&quot;layout&quot;:&quot;vertical&quot;,&quot;submenu_icon&quot;:{&quot;value&quot;:&quot;&lt;svg class=\\&quot;e-font-icon-svg e-fas-caret-down\\&quot; viewBox=\\&quot;0 0 320 512\\&quot; xmlns=\\&quot;http:\\\/\\\/www.w3.org\\\/2000\\\/svg\\&quot;&gt;&lt;path d=\\&quot;M31.3 192h257.3c17.8 0 26.7 21.5 14.1 34.1L174.1 354.8c-7.8 7.8-20.5 7.8-28.3 0L17.2 226.1C4.6 213.5 13.5 192 31.3 192z\\&quot;&gt;&lt;\\\/path&gt;&lt;\\\/svg&gt;&quot;,&quot;library&quot;:&quot;fa-solid&quot;},&quot;toggle&quot;:&quot;burger&quot;}\" data-widget_type=\"nav-menu.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t<nav aria-label=\"Menu\" class=\"elementor-nav-menu--main elementor-nav-menu__container elementor-nav-menu--layout-vertical e--pointer-background e--animation-fade\">\n\t\t\t\t<ul id=\"menu-1-cce049f\" class=\"elementor-nav-menu sm-vertical\"><li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-84\"><a href=\"https:\/\/cecchinipaolo.it\/trattamenti\/cataratta\/\" class=\"elementor-item\">Cataracts<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-83\"><a href=\"https:\/\/cecchinipaolo.it\/trattamenti\/lenti-intraoculari\/\" class=\"elementor-item\">Intraocular lenses<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-82\"><a href=\"https:\/\/cecchinipaolo.it\/trattamenti\/lensectomia-a-scopo-refrattivo\/\" class=\"elementor-item\">Lensectomy for refractive purposes<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-81\"><a href=\"https:\/\/cecchinipaolo.it\/trattamenti\/impianto-di-lenti-icl\/\" class=\"elementor-item\">ICL lens implantation<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-417\"><a href=\"https:\/\/cecchinipaolo.it\/trattamenti\/correzione-miopia-ipermetropia-astigmatismo-laser\/\" class=\"elementor-item\">Correction of myopia, hyperopia, astigmatism<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-416\"><a href=\"https:\/\/cecchinipaolo.it\/trattamenti\/presbiopia\/\" class=\"elementor-item\">Presbyopia<\/a><\/li>\n<\/ul>\t\t\t<\/nav>\n\t\t\t\t\t<div class=\"elementor-menu-toggle\" role=\"button\" tabindex=\"0\" aria-label=\"Menu Toggle\" aria-expanded=\"false\">\n\t\t\t<svg aria-hidden=\"true\" role=\"presentation\" class=\"elementor-menu-toggle__icon--open e-font-icon-svg e-eicon-menu-bar\" viewBox=\"0 0 1000 1000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M104 333H896C929 333 958 304 958 271S929 208 896 208H104C71 208 42 237 42 271S71 333 104 333ZM104 583H896C929 583 958 554 958 521S929 458 896 458H104C71 458 42 487 42 521S71 583 104 583ZM104 833H896C929 833 958 804 958 771S929 708 896 708H104C71 708 42 737 42 771S71 833 104 833Z\"><\/path><\/svg><svg aria-hidden=\"true\" role=\"presentation\" class=\"elementor-menu-toggle__icon--close e-font-icon-svg e-eicon-close\" viewBox=\"0 0 1000 1000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M742 167L500 408 258 167C246 154 233 150 217 150 196 150 179 158 167 167 154 179 150 196 150 212 150 229 154 242 171 254L408 500 167 742C138 771 138 800 167 829 196 858 225 858 254 829L496 587 738 829C750 842 767 846 783 846 800 846 817 842 829 829 842 817 846 804 846 783 846 767 842 750 829 737L588 500 833 258C863 229 863 200 833 171 804 137 775 137 742 167Z\"><\/path><\/svg>\t\t<\/div>\n\t\t\t\t\t<nav class=\"elementor-nav-menu--dropdown elementor-nav-menu__container\" aria-hidden=\"true\">\n\t\t\t\t<ul id=\"menu-2-cce049f\" class=\"elementor-nav-menu sm-vertical\"><li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-84\"><a href=\"https:\/\/cecchinipaolo.it\/trattamenti\/cataratta\/\" class=\"elementor-item\" tabindex=\"-1\">Cataracts<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-83\"><a href=\"https:\/\/cecchinipaolo.it\/trattamenti\/lenti-intraoculari\/\" class=\"elementor-item\" tabindex=\"-1\">Intraocular lenses<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-82\"><a href=\"https:\/\/cecchinipaolo.it\/trattamenti\/lensectomia-a-scopo-refrattivo\/\" class=\"elementor-item\" tabindex=\"-1\">Lensectomy for refractive purposes<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-81\"><a href=\"https:\/\/cecchinipaolo.it\/trattamenti\/impianto-di-lenti-icl\/\" class=\"elementor-item\" tabindex=\"-1\">ICL lens implantation<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-417\"><a href=\"https:\/\/cecchinipaolo.it\/trattamenti\/correzione-miopia-ipermetropia-astigmatismo-laser\/\" class=\"elementor-item\" tabindex=\"-1\">Correction of myopia, hyperopia, astigmatism<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-416\"><a href=\"https:\/\/cecchinipaolo.it\/trattamenti\/presbiopia\/\" class=\"elementor-item\" tabindex=\"-1\">Presbyopia<\/a><\/li>\n<\/ul>\t\t\t<\/nav>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-66 elementor-top-column elementor-element elementor-element-e9e998d\" data-id=\"e9e998d\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-0a7e54b elementor-widget elementor-widget-heading\" data-id=\"0a7e54b\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Correction of myopia, hyperopia, astigmatism<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-04f0ee9 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"04f0ee9\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1d9f5f3 elementor-widget elementor-widget-text-editor\" data-id=\"1d9f5f3\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Refractive defects are corrected by excimer laser treatment. This laser is able to reshape the contour of the cornea, by ablation of the cornea, in an extremely precise and gentle manner. In practical terms, the laser vaporizes a thin layer of the cornea, changing its power and thus allowing the refractive defect, whether myopia, astigmatism or hyperopia, to be corrected. There are several laser techniques:<\/p>\n<ul>\n<li style=\"font-weight: 400;\"><b>PRK<\/b>. PRK (photorefractive keratectomy) is the technique that involves, in its most common version, the prior removal of the corneal epithelium in order to expose the corneal stroma for laser treatment. The excimer laser can now perform ablation (removal) of a thin layer of the stroma so as to give the cornea a new profile and thus achieve correction of the visual defect. At the end of the surgery, a contact lens is applied to protect the cornea, which should be worn for 5-7 days. Corneal healing will occur within a few days, with the disappearance of postoperative discomfort such as foreign body sensation, photophobia, and tearing.&nbsp;  Full visual recovery will occur after a few weeks.<\/li>\n<li style=\"font-weight: 400;\">\n<p><b>FemtoLASIK<\/b>. In this technique a first laser, called a femtosecond laser,<span style=\"mso-spacerun: yes;\">&nbsp; <\/span>Sculpts a thin flap of cornea about 100 microns thick. The flap, also called a flap, is lifted up like the page of a book, and the excimer laser provide ablation of the corneal tissue as in PRK, but slightly deeper. The big advantage of this technique is that the flap or flap is repositioned at the end of the procedure, protecting the newly treated cornea, without the need for contact lens fitting, with the epithelium intact. Healing is much faster than PRK with prompt visual recovery and minimal discomfort for only a few hours, or at most one or two days.<\/p>\n<\/li>\n<\/ul>\n<p><b><br><\/b><\/p>\n<p><b>When is PRK done? When is FemtoLASIK best?<\/b><\/p>\n<p><\/p>\n<p>There is no single answer. In general, it can be said that the results of the two techniques are equivalent. Currently, FemtoLASIK is the technique of choice for the majority of patients with varying degrees of myopia given the fast visual recovery and limited postoperative discomfort, but it is particularly indicated in cases of astigmatism and hypermetropia. PRK is preferred in patients who have particularly thin corneas and in those who participate in contact sports, such as boxing or martial arts.<\/p>\n<p><b>When correction with laser, and when with ICL?<\/b><\/p>\n<p><\/p>\n<p>The decision on which technique is best depends on the individual case. In general, ICL implantation is the solution of choice in cases of high myopia, when excimer laser ablation would result in excessive tissue removal and therefore be dangerous to the integrity of the cornea. Similarly, ICL implantation is also indicated in cases of more moderate myopia but with corneal thickness too thin to withstand excimer laser treatment.<\/p>\n<p><\/p>\n<p><b>What examinations are needed to assess operability?<\/b><\/p>\n<p><\/p>\n<p>Suitability for treatment goes through the medical history, that is, the collection of general and specialized medical history, which must assess familiarity for eye diseases,&nbsp; stability of the visual defect, and the presence of drug allergies. The subsequent objective examination assesses the extent of the visual defect (refraction), both in miosis and cycloplegia, to decide what the extent of treatment will be, and excludes the presence of pathologies such as corneal ectasia, especially keratoconus, which contraindicate laser treatment. The key examination in this regard is corneal tomography-topography. The examination allows the evaluation of parameters that are fundamental for the correct treatment setting, such as corneal thickness (pachymetry), corneal size, and corneal shape. Corneal tomography allows determination of the curvature of both the anterior and posterior faces of the cornea, enabling determination of any abnormalities such as those induced by keratoconus.<\/p>\n<p>Tomography, in addition to excimer laser treatment, is also essential in the case of ICL implantation. For such an implant, in fact, the determination of the depth of the anterior chamber as well as the size of the cornea is necessary.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Laser correction of myopia, hyperopia, astigmatism Treatments: Correction of myopia, hyperopia, astigmatism Refractive defects are corrected by excimer laser treatment. This laser is able to reshape the contour of the cornea, by ablation of the cornea, in an extremely precise and gentle manner. In practical terms, the laser vaporizes a thin layer of the cornea, [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":351,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-378","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/cecchinipaolo.it\/en\/wp-json\/wp\/v2\/pages\/378","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cecchinipaolo.it\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/cecchinipaolo.it\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/cecchinipaolo.it\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/cecchinipaolo.it\/en\/wp-json\/wp\/v2\/comments?post=378"}],"version-history":[{"count":1,"href":"https:\/\/cecchinipaolo.it\/en\/wp-json\/wp\/v2\/pages\/378\/revisions"}],"predecessor-version":[{"id":379,"href":"https:\/\/cecchinipaolo.it\/en\/wp-json\/wp\/v2\/pages\/378\/revisions\/379"}],"up":[{"embeddable":true,"href":"https:\/\/cecchinipaolo.it\/en\/wp-json\/wp\/v2\/pages\/351"}],"wp:attachment":[{"href":"https:\/\/cecchinipaolo.it\/en\/wp-json\/wp\/v2\/media?parent=378"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}