<?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>S2604-12272021000300095</article-id>
<article-id pub-id-type="doi">10.24875/rmo.m21000153</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Correlación entre la densidad de perfusión y el grosor de la capa de células ganglionares en sujetos sin diabetes y en pacientes diabéticos sin retinopatía]]></article-title>
<article-title xml:lang="en"><![CDATA[Correlation between perfusion density and ganglion cell layer thickness in non-diabetic subjects and diabetic patients without retinopathy]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Serrato-Martín]]></surname>
<given-names><![CDATA[Guillermo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Razo-Blanco-Hernández]]></surname>
<given-names><![CDATA[Dulce M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Somilleda-Ventura]]></surname>
<given-names><![CDATA[Selma A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lima-Gómez]]></surname>
<given-names><![CDATA[Virgilio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Juárez de México Servicio de Oftalmología ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital Juárez de México División de Investigación ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Fundación Hospital Nuestra Señora de la Luz I.A.P Centro de Investigación Biomédica ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2021</year>
</pub-date>
<volume>95</volume>
<numero>3</numero>
<fpage>95</fpage>
<lpage>100</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2604-12272021000300095&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2604-12272021000300095&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2604-12272021000300095&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Objetivo: Comparar la correlación entre la densidad de perfusión y el grosor de la capa de células ganglionares en sujetos sin diabetes y diabéticos sin retinopatía.  Método: Estudio observacional, retrospectivo, comparativo y transversal, en sujetos sin diabetes (grupo 1) y diabéticos sin retinopatía (grupo 2) evaluados mediante tomografía de coherencia óptica y angiotomografía de coherencia óptica (Cirrus con Angioplex). Se compararon entre grupos la densidad de perfusión por cuadrantes (mapa de 3 × 3 mm), el grosor de la capa de células ganglionares por sectores (U de Mann-Whitney) y la correlación entre variables por grupo (Rho de Spearman).  Resultados: Se incluyeron 34 sujetos en el grupo 1 y 38 en el grupo 2. Las densidades de perfusión interna, completa, superior y nasal fueron menores en el grupo 2 (p &lt; 0.05); el grosor de la capa de células ganglionares no difirió entre grupos en ningún sector. Hubo correlaciones débiles entre la densidad de perfusión interna y completa y los grosores de la capa de células ganglionares en el grupo 1; en el grupo 2 hubo correlaciones débiles entre la perfusión del cuadrante inferior y el grosor de los sectores inferior e inferior temporal, donde la densidad de perfusión no difirió de la del grupo 1.  Conclusiones: La correlación entre la densidad de perfusión y el grosor de la capa de células ganglionares es débil en los sujetos sin diabetes y se pierde en los pacientes diabéticos sin retinopatía, porque en ellos solo la densidad de perfusión es menor.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Purpose: To compare the correlation between perfusion density and ganglion cell layer thickness in non-diabetic subjects and diabetics without retinopathy.  Methods: Non-experimental, retrospective, comparative cross-sectional study in subjects without diabetes (group 1) and diabetics without retinopathy (group 2) evaluated with optical coherence tomography and optical coherence tomography angiography (Cirrus with Angioplex). We compared perfusion density between groups by quadrants (3 × 3 mm map), ganglion cell layer thickness by sectors (Mann Whitney’s U) and the correlation between variables within groups (Spearman’s Rho).  Results: Thirty-four subjects in group 1, 38 in group 2. Inner, total, superior and nasal perfusion densities were lower in group 2 (p &lt; 0.05); ganglion cell layer thickness did not differ between groups in any sector. There were weak correlations between inner and total perfusion densities and ganglion cell layer thicknesses in group 1; in group 2 there were weak correlations between inferior quadrant perfusion and ganglion cell layer thickness in the inferior and inferior temporal sectors, where perfusion density did not differ from group 1.  Conclusions: The correlation between perfusion density and ganglion cell layer thickness is weak in non-diabetic subjects; diabetics without retinopathy show no correlation, observing only a lower perfusion density.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Células ganglionares]]></kwd>
<kwd lng="es"><![CDATA[Correlación]]></kwd>
<kwd lng="es"><![CDATA[Densidad de perfusión]]></kwd>
<kwd lng="es"><![CDATA[Diabetes]]></kwd>
<kwd lng="es"><![CDATA[Grosor de la capa de células ganglionares]]></kwd>
<kwd lng="es"><![CDATA[Retina]]></kwd>
<kwd lng="en"><![CDATA[Ganglion cells]]></kwd>
<kwd lng="en"><![CDATA[Correlation]]></kwd>
<kwd lng="en"><![CDATA[Perfusion density]]></kwd>
<kwd lng="en"><![CDATA[Diabetes]]></kwd>
<kwd lng="en"><![CDATA[Ganglion cell layer thickness]]></kwd>
<kwd lng="en"><![CDATA[Retina]]></kwd>
</kwd-group>
</article-meta>
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