{"id":996,"date":"2012-02-10T21:28:00","date_gmt":"2012-02-10T21:28:00","guid":{"rendered":"https:\/\/www.codetvision.com\/es\/?p=996"},"modified":"2025-12-11T00:11:17","modified_gmt":"2025-12-11T00:11:17","slug":"prospective-randomized-double-blind-contralateral-eye-comparison-of-myopic-lasik-with-optimized-aspheric-or-prolate-ablations","status":"publish","type":"post","link":"https:\/\/www.codetvision.com\/es\/2012\/02\/10\/prospective-randomized-double-blind-contralateral-eye-comparison-of-myopic-lasik-with-optimized-aspheric-or-prolate-ablations\/","title":{"rendered":"Prospective, randomized, double-blind, contralateral eye comparison of myopic LASIK with optimized aspheric or prolate ablations"},"content":{"rendered":"\n<h3 class=\"wp-block-heading\" id=\"h-purpose\">PURPOSE:<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">To compare the postoperative outcomes of aspheric or prolate LASIK for myopia and myopic astigmatism.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-methods\">METHODS:<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">In this double-blind, bilateral, randomized trial, 40 patients (80 eyes) with -0.75 to -7.00 diopters (D) of manifest refraction spherical equivalent (MRSE) underwent optimized aspheric treatment zone ablation (OATz group) in 1 eye and optimized prolate ablation (OPA group) in the fellow eye. Six-month postoperative outcomes were compared for MRSE and visual acuity, contrast sensitivity, patient satisfaction, ocular higher order aberrations (HOAs), and spherical aberration. The Wilcoxon signed rank test, Mann-Whitney U test, and paired t test were used for testing differences between groups. P&lt;.05 was statistically significant. Main outcome measures included HOAs, spherical aberration, visual and refractive outcomes, and contrast sensitivity.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-results\">RESULTS:<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Postoperatively, 36 patients (72 eyes) were evaluated. The MRSE was -0.07\u00b10.23 D for the OPA group and +0.02\u00b10.24 D for the OATz group (P&gt;.05). Two (5%) eyes in the OPA group and 1 (3%) eye in the OATz group (P=.114) lost 1 line of corrected distance visual acuity. Postoperative visual acuity was not statistically different between groups (P&gt;.05). Statistically lower change was noted in spherical aberration (0.011 \u03bcm) in the OPA group versus the OATz group (0.099 \u03bcm) (P&lt;.001). Statistically higher induction of coma was noted in the OPA group (P=.035). No statistically significant differences were noted in photopic, mesopic, or glare contrast sensitivity and patient satisfaction between groups (P&gt;.05, for all comparisons).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-conclusions\">CONCLUSIONS:<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The refractive and visual outcomes of OPA and OATz were equivalent. However, the postoperative optical quality of OPA-treated eyes was better<\/p>\n\n\n\n<div  class=\" b-buttons\" >\n\t\t\t<a  class=\"b-buttons__button a-btn a-btn--has-icon-after icon-arrow-right\" href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/22201324\/\">\n\tLeer art\u00edculo<\/a>\n\t<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Chayet A, Bains HS.<\/p>\n","protected":false},"author":12,"featured_media":2804,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[141,57],"tags":[69],"class_list":["post-996","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-lasik-sin-cuchilla-o-prk","category-publicaciones-cientificas","tag-publicacion-cientifica"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.7 (Yoast SEO v27.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Prospective, randomized, double-blind, contralateral eye comparison of myopic LASIK with optimized aspheric or prolate ablations - CODET Vision Institute<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.codetvision.com\/es\/2012\/02\/10\/prospective-randomized-double-blind-contralateral-eye-comparison-of-myopic-lasik-with-optimized-aspheric-or-prolate-ablations\/\" \/>\n<meta property=\"og:locale\" content=\"es_MX\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Prospective, randomized, double-blind, contralateral eye comparison of myopic LASIK with optimized aspheric or prolate ablations\" \/>\n<meta property=\"og:description\" content=\"Chayet A, Bains HS.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.codetvision.com\/es\/2012\/02\/10\/prospective-randomized-double-blind-contralateral-eye-comparison-of-myopic-lasik-with-optimized-aspheric-or-prolate-ablations\/\" \/>\n<meta property=\"og:site_name\" content=\"CODET Vision Institute\" \/>\n<meta property=\"article:published_time\" content=\"2012-02-10T21:28:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-12-11T00:11:17+00:00\" \/>\n<meta name=\"author\" content=\"CODET Vision Institute\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"CODET Vision Institute\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tiempo de lectura\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.codetvision.com\\\/es\\\/2012\\\/02\\\/10\\\/prospective-randomized-double-blind-contralateral-eye-comparison-of-myopic-lasik-with-optimized-aspheric-or-prolate-ablations\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.codetvision.com\\\/es\\\/2012\\\/02\\\/10\\\/prospective-randomized-double-blind-contralateral-eye-comparison-of-myopic-lasik-with-optimized-aspheric-or-prolate-ablations\\\/\"},\"author\":{\"name\":\"CODET Vision Institute\",\"@id\":\"https:\\\/\\\/www.codetvision.com\\\/es\\\/#\\\/schema\\\/person\\\/e1f99ed5c8e34492817f84bc6ebf4edc\"},\"headline\":\"Prospective, randomized, double-blind, contralateral eye comparison of myopic LASIK with optimized aspheric or prolate ablations\",\"datePublished\":\"2012-02-10T21:28:00+00:00\",\"dateModified\":\"2025-12-11T00:11:17+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.codetvision.com\\\/es\\\/2012\\\/02\\\/10\\\/prospective-randomized-double-blind-contralateral-eye-comparison-of-myopic-lasik-with-optimized-aspheric-or-prolate-ablations\\\/\"},\"wordCount\":263,\"image\":{\"@id\":\"https:\\\/\\\/www.codetvision.com\\\/es\\\/2012\\\/02\\\/10\\\/prospective-randomized-double-blind-contralateral-eye-comparison-of-myopic-lasik-with-optimized-aspheric-or-prolate-ablations\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.codetvision.com\\\/es\\\/wp-content\\\/uploads\\\/2021\\\/01\\\/Icon-Scientific-Publication.png\",\"keywords\":[\"publicaci\u00f3n cient\u00edfica\"],\"articleSection\":[\"LASIK-sin-Cuchilla o PRK\",\"Publicaciones Cient\u00edficas\"],\"inLanguage\":\"es\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.codetvision.com\\\/es\\\/2012\\\/02\\\/10\\\/prospective-randomized-double-blind-contralateral-eye-comparison-of-myopic-lasik-with-optimized-aspheric-or-prolate-ablations\\\/\",\"url\":\"https:\\\/\\\/www.codetvision.com\\\/es\\\/2012\\\/02\\\/10\\\/prospective-randomized-double-blind-contralateral-eye-comparison-of-myopic-lasik-with-optimized-aspheric-or-prolate-ablations\\\/\",\"name\":\"Prospective, randomized, double-blind, contralateral eye comparison of myopic LASIK with optimized aspheric or prolate ablations - 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