<?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>2307-0420</journal-id>
<journal-title><![CDATA[Cirugía paraguaya]]></journal-title>
<abbrev-journal-title><![CDATA[Cir. parag.]]></abbrev-journal-title>
<issn>2307-0420</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Paraguaya de Cirugía]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2307-04202021000100020</article-id>
<article-id pub-id-type="doi">10.18004/sopaci.2021.abril.20</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Variación en el postoperatorio del conteo de células endoteliales por microscopia especular en pacientes operados de cataratas por SICS y facoemulsificación]]></article-title>
<article-title xml:lang="en"><![CDATA[Variation in postoperative endothelial cell counting by specular microscopy in patients operated for cataracts by SICS and phacoemulsification]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ocampos-Carvallo]]></surname>
<given-names><![CDATA[José Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Samudio]]></surname>
<given-names><![CDATA[Margarita]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Duerksen]]></surname>
<given-names><![CDATA[Rainald]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Fundación Visión Paraguay Servicio de Oftalmología ]]></institution>
<addr-line><![CDATA[San Lorenzo ]]></addr-line>
<country>Paraguay</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2021</year>
</pub-date>
<volume>45</volume>
<numero>1</numero>
<fpage>20</fpage>
<lpage>27</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_arttext&amp;pid=S2307-04202021000100020&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_abstract&amp;pid=S2307-04202021000100020&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_pdf&amp;pid=S2307-04202021000100020&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN El estudio del endotelio corneal proporciona una importante información clínica sobre la función y viabilidad corneal. El porcentaje de pérdida celular por la cirugía de catarata varía según la experiencia del cirujano y la técnica quirúrgica empleada. En este estudio se compara la disminución del recuento de células endoteliales por la cirugía de catarata entre dos técnicas quirúrgicas, FACO y SICS, en 50 pacientes entre 45 y 88 años de edad (edad media: 60,4 ± 10,3 años), con predominancia del sexo femenino (60%); 30 fueron operados por facoemulsificación y 20 por SICS. El recuento celular del endotelio corneal, antes y después de la intervención y la pérdida promedio de células debido a la misma, fue de 2399,7±377,7; 2188,1±416,6 y 211,6±242,0, respectivamente. El porcentaje de reducción por la cirugía fue de 8,8% en forma global, siendo significativamente mayor en los pacientes sometidos a SICS (12,5%) comparado a los operados por Faco (6,3%). Se encontraron densidades de células endoteliales en riesgo (menos de 2000 células / mm2) en el 12% de los ojos que aumentó a 28% después de la cirugía. Los resultados de este estudio son consistentes con el porcentaje de reducción de las células endoteliales informados por otros autores.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The study of endothelial cells provides important clinical information on corneal function and viability. The percentage of cell loss after cataract surgery varies depending on the experience of the surgeon and the surgical technique used. This study compares the decrease in endothelial cell count after cataract surgery by two surgical techniques, FACO and SICS in 50 patients between 45 and 88 years of age (mean age: 60.4 ± 10.3 years old), with a predominance of females (60%); 30 underwent cataract surgery by phacoemulsification and 20 by SICS. The cell count of the corneal endothelium, before and after the intervention and the average loss of cells, was 2399.7 ± 377.7, 2188.1 ± 416.6 and 211.6 ± 242.0, respectively. The percentage of reduction due to surgery was 8.8% overall, being significantly higher in patients undergoing SICS (12.5%) compared to those operated by Phaco (6.3%). Endothelial cell densities at risk (less than 2000 cells / mm2) were found in 12% of the patients' eyes which increased to 28% after surgery. The results of this study are consistent with the percentage of endothelial cell reduction reported by other authors.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Catarata]]></kwd>
<kwd lng="es"><![CDATA[Faco]]></kwd>
<kwd lng="es"><![CDATA[SICS]]></kwd>
<kwd lng="es"><![CDATA[recuento célula endotelial]]></kwd>
<kwd lng="es"><![CDATA[microscopía especular]]></kwd>
<kwd lng="en"><![CDATA[Cataract]]></kwd>
<kwd lng="en"><![CDATA[Phaco]]></kwd>
<kwd lng="en"><![CDATA[SICS]]></kwd>
<kwd lng="en"><![CDATA[endothelial cell count]]></kwd>
<kwd lng="en"><![CDATA[specular microscopy.]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Leasher]]></surname>
<given-names><![CDATA[JL]]></given-names>
</name>
<name>
<surname><![CDATA[Braithwaite]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Furtado]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<name>
<surname><![CDATA[Flaxman]]></surname>
<given-names><![CDATA[SR]]></given-names>
</name>
<name>
<surname><![CDATA[Lansingh]]></surname>
<given-names><![CDATA[VC]]></given-names>
</name>
<name>
<surname><![CDATA[Silva]]></surname>
<given-names><![CDATA[JC]]></given-names>
</name>
<name>
<surname><![CDATA[Resnikoff]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Taylor]]></surname>
<given-names><![CDATA[HR]]></given-names>
</name>
<name>
<surname><![CDATA[Bourne]]></surname>
<given-names><![CDATA[RRA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Prevalence and causes of vision loss in Latin America and the]]></article-title>
<collab>Vision Loss Expert Group of the Global Burden of Disease Study</collab>
<source><![CDATA[Caribbean in]]></source>
<year>2015</year>
<page-range>magnitude</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Duerksen]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Limburg]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Lansingh]]></surname>
<given-names><![CDATA[VC]]></given-names>
</name>
<name>
<surname><![CDATA[Silva]]></surname>
<given-names><![CDATA[JC]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Review of blindness and visual impairment in Paraguay changes between 1999 and 2011]]></article-title>
<source><![CDATA[Ophthalmic Epidemiol]]></source>
<year>2013</year>
<volume>1020</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>301-7</page-range></nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kanski]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<source><![CDATA[Lens.Clinical Ophthalmology a Systematic Approach]]></source>
<year>2007</year>
<edition>5ta</edition>
<publisher-loc><![CDATA[Philadelphia ]]></publisher-loc>
<publisher-name><![CDATA[Elsevier science]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Thevi]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Reddy]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Shantakumar]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Outcome of phacoemulsification and extracapsular cataract extraction A study in a district hospital in Malaysia]]></article-title>
<source><![CDATA[Malaysian Family Physician: the Official Journal of the Academy of Family Physicians of Malaysia]]></source>
<year>2014</year>
<volume>9</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>41-7</page-range></nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chang]]></surname>
<given-names><![CDATA[DF]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Factoring cost, is phacoemulsification still the procedure of choice]]></article-title>
<source><![CDATA[Br J Ophthalmol]]></source>
<year>2001</year>
<volume>85</volume>
<page-range>765-6</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Elvira]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<source><![CDATA[Facoemulsificación del cristalino y pérdida de células endoteliales]]></source>
<year>2009</year>
<publisher-loc><![CDATA[España ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wright]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Chawla]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Adams]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Results of small incision extracapsular cataract surgery using the anterior chamber maintainer without viscoelastic]]></article-title>
<source><![CDATA[Br J Ophthalmol]]></source>
<year>1999</year>
<volume>83</volume>
<page-range>71-5</page-range></nlm-citation>
</ref>
<ref id="B8">
<label>8</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[George]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Rupauliha]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Sripriya]]></surname>
<given-names><![CDATA[AV]]></given-names>
</name>
<name>
<surname><![CDATA[Rajesh]]></surname>
<given-names><![CDATA[PS]]></given-names>
</name>
<name>
<surname><![CDATA[Vahan]]></surname>
<given-names><![CDATA[PV]]></given-names>
</name>
<name>
<surname><![CDATA[Praveen]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comparison of endothelial cell loss and surgically induced astigmatism following conventional extracapsular cataract surgery, manual small-incision surgery and phacoemulsification]]></article-title>
<source><![CDATA[Ophthalmic Epidemiol]]></source>
<year>2005</year>
<volume>12</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>293-7</page-range></nlm-citation>
</ref>
<ref id="B9">
<label>9</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Welch Ruiz]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Cruz Blanco]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Escalona Tamayo M]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Fundora Salgado]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Facoemulsificación en la cirugía de catarata]]></article-title>
<source><![CDATA[Rev Cub Med Mil]]></source>
<year>2017</year>
<volume>46</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>244-55</page-range></nlm-citation>
</ref>
<ref id="B10">
<label>10</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Praveen]]></surname>
<given-names><![CDATA[MR]]></given-names>
</name>
<name>
<surname><![CDATA[Vasavada]]></surname>
<given-names><![CDATA[AR]]></given-names>
</name>
<name>
<surname><![CDATA[Ghodadra]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Edelhauser]]></surname>
<given-names><![CDATA[HF]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Corneal endothelial morphologic features in cataract and clear lens an Indian population]]></article-title>
<source><![CDATA[Am J Ophthalmol]]></source>
<year>2007</year>
<volume>144</volume>
<page-range>914-20</page-range></nlm-citation>
</ref>
<ref id="B11">
<label>11</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Snellingen]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Rao]]></surname>
<given-names><![CDATA[GN]]></given-names>
</name>
<name>
<surname><![CDATA[Shrestha]]></surname>
<given-names><![CDATA[JK]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Quantitative and morphological characteristics of the human corneal endothelium in relation to age, gender, and ethnicity in cataract populations of South Asia]]></article-title>
<source><![CDATA[Cornea]]></source>
<year>2001</year>
<volume>20</volume>
<page-range>55-8</page-range></nlm-citation>
</ref>
<ref id="B12">
<label>12</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Quiroga]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Lansingh]]></surname>
<given-names><![CDATA[VC]]></given-names>
</name>
<name>
<surname><![CDATA[Samudio]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Peña]]></surname>
<given-names><![CDATA[FY]]></given-names>
</name>
<name>
<surname><![CDATA[Carter]]></surname>
<given-names><![CDATA[MJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Characteristics of the corneal endothelium and pseudoexfoliation syndrome in patients with senile cataract]]></article-title>
<source><![CDATA[Clin Exp Ophthalmol]]></source>
<year>2010</year>
<volume>38</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>449-55</page-range></nlm-citation>
</ref>
<ref id="B13">
<label>13</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cheng]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Jacobs]]></surname>
<given-names><![CDATA[PM]]></given-names>
</name>
<name>
<surname><![CDATA[McPherson]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Noble]]></surname>
<given-names><![CDATA[MJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Precision of cell density estimates endothelial cell loss with age]]></article-title>
<source><![CDATA[Arch Ophthalmol]]></source>
<year>1985</year>
<volume>103</volume>
<page-range>1478-81</page-range></nlm-citation>
</ref>
<ref id="B14">
<label>14</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Strohl]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Pozzi]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Wattiez]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Roesen]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Miño de Kaspar]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Klauss]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Secondary glaucoma in Paraguay. Etiology and incidence]]></article-title>
<source><![CDATA[Ophthalmologe]]></source>
<year>1999</year>
<volume>96</volume>
<page-range>359-63</page-range></nlm-citation>
</ref>
<ref id="B15">
<label>15</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hernández Silva]]></surname>
<given-names><![CDATA[JR]]></given-names>
</name>
<name>
<surname><![CDATA[Padilla González]]></surname>
<given-names><![CDATA[CM]]></given-names>
</name>
<name>
<surname><![CDATA[Ramos López]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Ríos Cazo]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Río Torres]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Resultados de la facoemulsificación en 4 años de experiencia]]></article-title>
<source><![CDATA[Rev Cubana Oftalmol]]></source>
<year>2004</year>
<volume>17</volume>
<numero>2</numero>
<issue>2</issue>
</nlm-citation>
</ref>
<ref id="B16">
<label>16</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ruit]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Tabin]]></surname>
<given-names><![CDATA[GC]]></given-names>
</name>
<name>
<surname><![CDATA[Nissman]]></surname>
<given-names><![CDATA[SA]]></given-names>
</name>
<name>
<surname><![CDATA[Paudyal]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Gurung]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Low-cost high-volume extracapsular cataract extraction with posterior chamber intraocular lens implantation in Nepal]]></article-title>
<source><![CDATA[Ophthalmol]]></source>
<year>1999</year>
<volume>106</volume>
<page-range>1887-92</page-range></nlm-citation>
</ref>
<ref id="B17">
<label>17</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Minassian]]></surname>
<given-names><![CDATA[DC]]></given-names>
</name>
<name>
<surname><![CDATA[Rosen]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Dart]]></surname>
<given-names><![CDATA[JKG]]></given-names>
</name>
<name>
<surname><![CDATA[Reidy]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Desai]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Sidhu]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Extracapsular cataract extraction compared with small incision surgery by phacoemulsification a randomized trial]]></article-title>
<source><![CDATA[Br J Ophthalmol]]></source>
<year>2001</year>
<volume>85</volume>
<page-range>822-9</page-range></nlm-citation>
</ref>
<ref id="B18">
<label>18</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gogate]]></surname>
<given-names><![CDATA[PM]]></given-names>
</name>
<name>
<surname><![CDATA[Deshpande]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Wormald]]></surname>
<given-names><![CDATA[RP]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Is manual small incision cataract surgery affordable in the developing countries A cost comparison with extracapsular cataract extraction]]></article-title>
<source><![CDATA[Br J Ophthalmol]]></source>
<year>2003</year>
<volume>87</volume>
<page-range>843-6</page-range></nlm-citation>
</ref>
<ref id="B19">
<label>19</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Venkatesh]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Muralikrishnan]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Balent]]></surname>
<given-names><![CDATA[LC]]></given-names>
</name>
<name>
<surname><![CDATA[Prakash]]></surname>
<given-names><![CDATA[SK]]></given-names>
</name>
<name>
<surname><![CDATA[Prajna]]></surname>
<given-names><![CDATA[NV]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Outcomes of high volume cataract surgeries in a developing country]]></article-title>
<source><![CDATA[Br J Ophthalmol]]></source>
<year>2005</year>
<volume>89</volume>
<page-range>1079-83</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
