<?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>2604-1227</journal-id>
<journal-title><![CDATA[Revista mexicana de oftalmología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. oftalmol]]></abbrev-journal-title>
<issn>2604-1227</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Oftalmología A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2604-12272019000500221</article-id>
<article-id pub-id-type="doi">10.24875/rmo.m19000082</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Queratocono en edad pediátrica: características clínico-refractivas y evolución. Centro de Especialidades Médicas Fundación Donum, Cuenca, Ecuador, 2015-2018]]></article-title>
<article-title xml:lang="en"><![CDATA[Keratoconus in pediatric age: clinical-refractive characteristics and evolution. Donum Foundation Medical Specialties Center. Cuenca. Ecuador. 2015-2018]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rojas-Álvarez]]></surname>
<given-names><![CDATA[Eduardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Cuenca Facultad de Ciencias Médicas ]]></institution>
<addr-line><![CDATA[Cuenca ]]></addr-line>
<country>Ecuador</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>10</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>10</month>
<year>2019</year>
</pub-date>
<volume>93</volume>
<numero>5</numero>
<fpage>221</fpage>
<lpage>232</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2604-12272019000500221&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2604-12272019000500221&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2604-12272019000500221&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Objetivo: Describir las características clínico-refractivas de pacientes con queratocono (KC) en edad pediátrica y su evolución, en el Centro de Especialidades Médicas Fundación Donum, Cuenca, Ecuador.  Método: Se realizó un estudio observacional, prospectivo y longitudinal en 94 pacientes en edad pediátrica (188 ojos) con diagnóstico de KC, diagnosticados en 2015 y seguidos hasta 2018, en el Centro de Especialidades Médicas Fundación Donum, Cuenca, Ecuador. Se obtuvo la media aritmética de la muestra de: queratometría media, paquimetría en el punto más delgado y cilindro refractivo, en dos momentos. Se empleó el análisis de varianza (ANOVA) de medidas repetidas para un factor con ajuste del intervalo de confianza por Bonferroni y valor p.  Resultados: Se obtuvo un aumento estadísticamente significativo entre el valor promedio de queratometría media de la muestra en el momento del diagnóstico (49.6 D) y el valor promedio de queratometría media a los 3 años de seguimiento (52.4 D) (p = 0.02; a = 0.05); una disminución estadísticamente significativa entre la paquimetría promedio de la muestra en el momento del diagnóstico (482 µm) y la paquimetría promedio de la muestra a los 3 años de seguimiento (459 µm) (p = 0.03; a = 0.05); y un incremento estadísticamente significativo entre el cilindro refractivo promedio de la muestra en el momento del diagnóstico (4.6 D) y el cilindro refractivo promedio de la muestra a los 3 años de seguimiento (5.1 D) (p = 0.01; a = 0.05).  Conclusiones: Las modificaciones de queratometría, cilindro refractivo y paquimetría sugieren progresión de la enfermedad en este grupo de edad, en un periodo de 3 años.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Objective: To describe the clinical-refractive characteristics of KC patients at pediatric age and their evolution, at the Donum Foundation Medical Center, Cuenca, Ecuador.  Method: An observational, prospective and longitudinal study was carried out in 94 pediatric patients (188 eyes) diagnosed with KC, diagnosed in 2015 and followed up to 2018, in the Donum Foundation Medical Center, Cuenca, Ecuador. The arithmetic mean of the sample was obtained: mean keratometry, pachymetry at the thinnest point and refractive cylinder, at two moments. The analysis of variance (ANOVA) of repeated measures was used for a factor with confidence interval adjustment by Bonferroni and p value.  Results: A statistically significant increase was obtained between the mean value of average keratometry of the sample (49.6 D), at the time of diagnosis, and the mean value of average keratometry at 3 years of follow-up (52.4 D). (p = 0.02; a = 0.05), a statistically significant decrease between the average pachymetry of the sample, at the time of diagnosis (482 µm), and the average pachymetry of the sample, at 3 years of follow-up (459 µm) (p = 0.03; a = 0.05) A statistically significant increase was obtained between the average refractive cylinder of the sample, at the time of diagnosis (4.6 D), and the average refractive cylinder of the sample, at 3 years of follow-up (5.1 D) (p = 0.01; a = 0.05).  Conclusions: The modifications of keratometry, refractive cylinder and pachymetry suggest progression of the disease in this age group, in a period of 3 years.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Queratocono]]></kwd>
<kwd lng="es"><![CDATA[Queratometría]]></kwd>
<kwd lng="es"><![CDATA[Paquimetría]]></kwd>
<kwd lng="es"><![CDATA[Cilindro refractivo]]></kwd>
<kwd lng="es"><![CDATA[Agudeza visual]]></kwd>
<kwd lng="en"><![CDATA[Keratoconus]]></kwd>
<kwd lng="en"><![CDATA[Keratometry]]></kwd>
<kwd lng="en"><![CDATA[Pachymetry]]></kwd>
<kwd lng="en"><![CDATA[Refractive cylinder]]></kwd>
<kwd lng="en"><![CDATA[Visual acuity]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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