<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>2444-054X</journal-id>
<journal-title><![CDATA[Cirugía y cirujanos]]></journal-title>
<abbrev-journal-title><![CDATA[Cir. cir.]]></abbrev-journal-title>
<issn>2444-054X</issn>
<publisher>
<publisher-name><![CDATA[Academia Mexicana de Cirugía A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2444-054X2022000700092</article-id>
<article-id pub-id-type="doi">10.24875/ciru.22000018</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Resultados queratométricos y refractivos tempranos en pacientes con queratocono operados con anillos intracorneales]]></article-title>
<article-title xml:lang="en"><![CDATA[Early keratometric and refractive results after intra-corneal rings surgery in keratoconus patients]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramírez]]></surname>
<given-names><![CDATA[Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Manzanillo]]></surname>
<given-names><![CDATA[Cristal]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Estrada]]></surname>
<given-names><![CDATA[Aranza]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cabrera]]></surname>
<given-names><![CDATA[Emmanuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ordoñez-Ranz]]></surname>
<given-names><![CDATA[Gabriela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Romero]]></surname>
<given-names><![CDATA[Emmanuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández-Quintela]]></surname>
<given-names><![CDATA[Everardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
<xref ref-type="aff" rid="A a"/>
<xref ref-type="aff" rid="A3"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Asociación Para Evitar la Ceguera en México Luis Sánchez Bulnes Departamento de Córnea y Cirugía Refractiva ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Medicina ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Johns Hopkins University School of Medicine Wilmer Eye Institute Division of Comprehensive Eye Care]]></institution>
<addr-line><![CDATA[Baltimore ]]></addr-line>
<country>Estados Unidos</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2022</year>
</pub-date>
<volume>90</volume>
<fpage>92</fpage>
<lpage>95</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2444-054X2022000700092&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2444-054X2022000700092&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2444-054X2022000700092&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Objetivo: Evaluar los resultados queratométricos y refractivos tempranos de pacientes con queratocono operados con anillos intracorneales.  Método: Se evaluaron 50 ojos de 25 pacientes con queratocono de grado 2 o 3, posoperados con colocación de anillos intracorneales mediante el uso de láser de femtosegundos, al mes del posoperatorio, comparando las queratometrías y las refracciones antes y después de la operación.  Resultados: El promedio preoperatorio de las queratometrías planas fue de 48.8 ± 3.65 D y en el posoperatorio fue de 46.44 ± 3.65 D (p &lt; 0.005). El promedio preoperatorio de las queratometrías curvas fue de 53.92 ± 4.50 y en el posoperatorio fue de 49.65 ± 4.15 (p &lt; 0.005). El equivalente esférico preoperatorio fue de &#8722;7.39 ± 2.42 D y en el posoperatorio fue de &#8722;3.48 ± 2.47 D (p &lt; 0.005). El promedio del cilindro preoperatorio fue de &#8722;5.65 ± 2.02 D y en el posoperatorio fue de &#8722;3.48 ± 2.47 D (p &lt; 0.005).  Conclusiones: La colocación de anillos intracorneales reduce de forma significativa tanto las queratometrías como los equivalentes esféricos y el astigmatismo en pacientes con queratocono en forma temprana.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Objective: To evaluate early keratometric and refractive results after intra-corneal rings surgery in keratoconus patients.  Method: 50 eyes of 25 patients with keratoconus within stage 2 and 3, underwent intra-stromal corneal rings surgery by using the femtosecond surgical laser, one month after surgery, corneal keratometries and patient refraction were compared vs pre-operative ones.  Results: Mean pre-operative low keratometry was 48.8 ± 3.65 D vs. 46.44 ± 3.65 D post-operative (p &lt; 0.005). Mean pre-operative high keratometry was 53.92 ± 4.50 vs. 49.65 ± 4.15 post-operative (p &lt; 0.005). Mean pre-operative spherical equivalent was &#8722;7.39 ± 2.42 D vs. &#8722;3.48 ± 2.47 D post-operative (p &lt; 0.005). Mean pre-operative cylinder was &#8722;5.65 ± 2.02 D vs. &#8722;3.48 ± 2.47 D post-operative (p &lt; 0.005).  Conclusions: Corneal keratometries, spherical equivalent and corneal cylinder, significant decrease at one month after intra-stromal corneal rings surgery in keratoconus patients.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Queratocono]]></kwd>
<kwd lng="es"><![CDATA[Queratometría]]></kwd>
<kwd lng="es"><![CDATA[Anillos intracorneales]]></kwd>
<kwd lng="en"><![CDATA[Keratoconus]]></kwd>
<kwd lng="en"><![CDATA[Keratometries]]></kwd>
<kwd lng="en"><![CDATA[Intra-corneal rings]]></kwd>
</kwd-group>
</article-meta>
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