<?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>0864-2176</journal-id>
<journal-title><![CDATA[Revista Cubana de Oftalmología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Cubana Oftalmol]]></abbrev-journal-title>
<issn>0864-2176</issn>
<publisher>
<publisher-name><![CDATA[Editorial Ciencias Médicas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0864-21762022000300004</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Sensibilidad al contraste y aberrometría ocular en pacientes operados de miopía con técnicas de superficie]]></article-title>
<article-title xml:lang="en"><![CDATA[Contrast Sensitivity and Ocular Aberrometry in Patients Operated on for Myopia with Surface Techniques]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Du]]></surname>
<given-names><![CDATA[Lu]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez Hernández]]></surname>
<given-names><![CDATA[Gabriel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez Suárez]]></surname>
<given-names><![CDATA[Raúl Gabriel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cárdenas Díaz]]></surname>
<given-names><![CDATA[Taimi]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Guerra Almaguer]]></surname>
<given-names><![CDATA[Michel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Cubano de Oftalmología &#8220;Ramón Pando Ferrer&#8221;  ]]></institution>
<addr-line><![CDATA[ La Habana]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2022</year>
</pub-date>
<volume>35</volume>
<numero>3</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0864-21762022000300004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0864-21762022000300004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0864-21762022000300004&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Objetivo: Determinar el cambio de la sensibilidad al contraste en pacientes operados de miopía con técnicas de superficie y su relación con la aberrometría ocular.  Métodos: Se realizó un estudio experimental con 324 ojos de 162 pacientes miopes atendidos en la consulta de Cirugía Refractiva del Instituto Cubano de Oftalmología &#8220;Ramón Pando Ferrer&#8221; en el período de enero 2019 y marzo de 2020 y que fueron operados de cirugía refractiva con láser de excímero, técnicas de superficie y perfil de ablación asférico. La sensibilidad al contraste fue la variable principal de comparación entre ambas técnicas quirúrgicas. Se formaron dos grupos de pacientes, cuya asignación fue secuencial, al primer grupo, se le realizó la técnica quirúrgica PRK-MMC (81) y al segundo LASEK-MMC (81) con un seguimiento de 3 meses.  Resultados: Predominaron las mujeres con miopía leve y edades entre 21 y 28 años. A los tres meses la sensibilidad al contraste, agudeza visual sin corrección, equivalente esférico y el valor cuadrático medio total mejoraron de manera significativa, mostrando una relación positiva con la sensibilidad al contraste en ambos grupos, sin diferencias entre ellos.  Conclusiones: La sensibilidad al contraste mejora con técnicas de superficie y posee una relación positiva y significativa con los resultados visuales, refractivos y aberrométricos. El estudio de las aberraciones oculares proporciona un arma fundamental para valorar la calidad óptica del ojo humano, información que permite conocer la calidad visual que se puede esperar en los pacientes evaluados.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Objective:  To determine the change in contrast sensitivity in patients operated on for myopia with surface techniques and its relationship with ocular aberrometry.  Methods:  An experimental study was carried out with 324 eyes of 162 myopic patients treated at the Refractive Surgery Clinic of the Cuban Institute of Ophthalmology "Ramón Pando Ferrer" between January 2019 and March 2020 who underwent refractive surgery with excimer laser and surface techniques and aspheric ablation profile. Contrast sensitivity was the main variable of comparison between both surgical techniques. Two groups of patients were sequentially assigned, the first group underwent PRK-MMC (81) and the second LASEK-MMC (81) with a 3-month follow-up.  Results:  Women with mild myopia and ages between 21 and 28 years predominated. After 3 months contrast sensitivity, uncorrected visual acuity, spherical equivalent and total average square value improved significantly, showing a positive relationship with contrast sensitivity in both groups, with no differences between them.  Conclusions:  Contrast sensitivity improves with surface techniques and has a positive and significant relationship with visual, refractive and aberrometric outcomes. The study of ocular aberrations provides a fundamental tool to assess the optical quality of the human eye, information that allows us to know the vision quality that can be expected in the patients evaluated.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[sensibilidad al contraste]]></kwd>
<kwd lng="es"><![CDATA[aberraciones oculares]]></kwd>
<kwd lng="es"><![CDATA[técnicas superficie]]></kwd>
<kwd lng="en"><![CDATA[contrast sensitivity]]></kwd>
<kwd lng="en"><![CDATA[ocular aberrations]]></kwd>
<kwd lng="en"><![CDATA[surface techniques]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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