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Introducción: El dengue es uno de los arbovirus de mayor importancia clínica y epidemiológica a nivel mundial. En Guatemala, durante el 2023 se registró el número más alto de casos en los últimos 10 años y un incremento de 135% en el número de casos comparado con el 2022. Objetivo: Caracterización clínica de dengue con signos de alarma y dengue grave. Metodología: Estudio descriptivo transversal retrospectivo, incluyó registros de 206 pacientes con signos de alarma de dengue que acudieron a la Emergencia de Adultos del Hospital Roosevelt de Guatemala, del 26 de septiembre al 26 de noviembre del 2023. Resultados: Predominó el sexo femenino en 54,4% y el grupo etario de 12-22 años en 51,0%. El principal signo de alarma fue el sangrado en 63,6%. Las mayores complicaciones fueron hepatopatía en 9,2%, choque en 5,8% y alteración neurológica en 2,9%. Respecto a los parámetros hematológicos, predominaron la trombocitopenia en 93,2%, leucopenia en 53,9% y linfocitosis en 71,4%. Las transaminasas AST y ALT presentaron elevación en 97,0% (96/99) y 91,0% (142/156), respectivamente. Los tiempos de coagulación se mostraron prolongados en 55,9% (104/186) para TPT y en 22,6% (42/186) para TP. Hubo 78,7% de positividad (148/188) para dengue. El 8,3% (17/206) de los pacientes fue referido al área crítica por clasificación de dengue grave. Conclusión: Estos datos aportan una mejora en el reconocimiento y el manejo clínico adecuado de casos con signos de alarma y dengue grave, que pueden contribuir para disminuir la carga de morbimortalidad de esta enfermedad en el país.

Introduction: Dengue is one of the most clinically and epidemiologically important arboviruses worldwide. In Guatemala, the highest number of cases in the last 10 years was recorded in 2023 and an increase of 135% in the number of cases compared to 2022. Objective: Clinical characterization of dengue with warning signs and severe dengue. Methodology: Retrospective cross-sectional descriptive study, included records of 206 patients with warning signs of dengue who attended the Adult Emergency of the Roosevelt Hospital in Guatemala, from September 26 to November 26, 2023. Results: The female sex predominated in 54,4% and the age group of 12-22 years in 51,0%. The main warning sign was bleeding in 63,6%. The major complications were liver disease in 9,2%, shock in 5,8% and neurological alterations in 2,9%. Regarding hematological parameters, thrombocytopenia predominated in 93,2%, leukopenia in 53,9% and lymphocytosis in 71,4%. The transaminases AST and ALT were elevated in 97,0% (96/99) and 91,0% (142/156), respectively. Coagulation times were prolonged in 55,9% (104/186) for TPT and in 22,6% (42/186) for TP. There was 78,7% positivity (148/188) for dengue. The 8,3% (17/206) of patients were referred to the critical area for classification of severe dengue. Conclusion: These data provide an improvement in the recognition and adequate clinical management of cases with warning signs and severe dengue, which can contribute to reducing the burden of morbidity and mortality from this disease in the country.

Introdução: A dengue é uma das arboviroses de maior importância clínica e epidemiológica em todo o mundo. Na Guatemala, durante 2023 foi registrado o maior número de casos dos últimos 10 anos e um aumento de 135% no número de casos em relação a 2022. Objetivo: Caracterização clínica da dengue com sinais de alerta e dengue grave. Metodologia: Estudo descritivo transversal que incluiu registros de 206 pacientes com sinais de alerta de dengue atendidos na Emergência Adulto do Hospital Roosevelt, na Guatemala, no período de 26 de setembro a 26 de novembro de 2023. Resultados: O sexo feminino predominou em 54,4% e na faixa etária de 12 a 22 anos em 51,0%. O principal sinal de alerta foi sangramento em 63,6%. As principais complicações foram doença hepática em 9,2%, choque em 5,8% e alteração neurológica em 2,9%. Em relação aos parâmetros hematológicos, houve predomínio de trombocitopenia em 93,2%, leucopenia em 53,9% e linfocitose em 71,4%. As transaminases AST e ALT foram elevadas em 97,0% (96/99) e 91,0% (142/156), respectivamente. Os tempos de coagulação foram prolongados em 55,9% (104/186) para TPT e em 22,6% (42/186) para TP. Houve 78,7% de positividade (148/188) para dengue. 8,3% (17/206) dos pacientes foram encaminhados para a área crítica devido à classificação de dengue grave. Conclusão: Esses dados proporcionam uma melhoria no reconhecimento e manejo clínico adequado dos casos com sinais de alerta e dengue grave, o que pode contribuir para a redução da carga de morbidade e mortalidade dessa doença no país.

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Objective: To determine the clinical and epidemiological characteristics of patients with noninfectious uveitis at a university hospital in Paraguay. Methodology: An observational, descriptive, cross-sectional, retrospective study was performed. Consecutive patients who attended the Ophthalmology Service of the Hospital de Clínicas from January 2020 to October 2021 and who were diagnosed with non-infectious uveitis were included. The variables studied were sex, age, origin, reason for consultation, anatomical classification, clinical course, systemic and ocular associations, and bilaterality. Results: A total of 78 medical records of patients meeting the inclusion and exclusion criteria were analyzed. Of the patients, 66.7% were female and 42 (53.8%) were from the Central Department. The anterior anatomical location of uveitis was the most frequent (53.9%), followed in decreasing order by panuveitis, posterior uveitis, and intermediate uveitis. Regarding anterior uveitis, 24 patients (57.1%) had unilateral uveitis, 40 (95.2%) were non-granulomatous, 19 (45.2%) presented an acute clinical course, the most frequent reason for consultation was "red and painful eye" with 15 patients (35.7%), the most frequent systemic association was HLA- B27+ in 16 patients (38.1%). As for panuveitis, 13 patients (50%) were associated with Vogt-Koyanagi-Harada syndrome, and of the latter, two patients were related to rheumatoid arthritis. Conclusion: The clinical and epidemiological patterns observed in this study were largely consistent with those reported in the literature. Notably, the most frequent associations differed from those reported in the literature: HLA-B27+ for anterior uveitis, rheumatoid arthritis for posterior uveitis, and a significant percentage of Vogt-Koyanagi-Harada syndrome among panuveitis cases.

Objetivo: Determinar las características clínicas y epidemiológicas de los pacientes con uveítis no infecciosas que acuden a un hospital universitario de Paraguay. Metodología: Se realizó un estudio observacional, descriptivo de corte transversal, retrospectivo. Se incluyeron casos consecutivos de pacientes que acudieron al Servicio de Oftalmología del Hospital de Clínicas de enero del 2020 a octubre del 2021 y que fueron diagnosticados con uveítis no infecciosa. Las variables estudiadas fueron sexo, edad, procedencia, motivo de consulta, clasificación anatómica, curso clínico, asociación sistémica y ocular y bilateralidad. Resultados: Se revisó los expedientes de 78 pacientes, el 66,7% fue de sexo femenino y 42 pacientes (53,8%) procedían del departamento Central. La localización anatómica anterior de la uveítis fue la más frecuente (53,9%), seguida en orden decreciente por la panuveítis, la posterior y la intermedia. Respecto a las uveítis anteriores, en 24 pacientes (57,1%) fueron unilaterales, en 40 (95,2%) no granulomatosas, 19 (45,2%) presentaron un curso clínico agudo, el motivo de consulta más frecuente fue "ojo rojo y doloroso" con 15 pacientes (35,7%), la asociación sistémica más frecuente fue HLA- B27+ en 16 pacientes (38,1%). En cuanto, a las panuveítis, 13 pacientes (50%) se asociaron con síndrome de Vogt-Koyanagi-Harada y de las posteriores 2 pacientes relacionados a Artritis reumatoidea. Conclusión: El patrón clínico y epidemiológico observado en este estudio es en su mayor parte similar al observado en la mayoría de las series encontradas en la literatura. Llaman la atención en este estudio que las asociaciones más frecuentes son diferentes de los reportados en la literatura: de la anterior, el HLA-B27+; de la posterior, la artritis reumatoidea; y que entre las panuveítis se observa un gran porcentaje de síndrome de Vogt-Koyanagi-Harada.

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Microcephaly is characterized by an occipitofrontal circumference at least two standard deviations below the mean for age and sex. Neurodevelopmental disorders (NDD) are commonly associated with microcephaly, due to perturbations in brain development and functioning. Given the extensive genetic heterogeneity of microcephaly, managing patients is hindered by the broad spectrum of diagnostic possibilities that exist before conducting molecular testing. We investigated the genetic basis of syndromic microcephaly accompanied by NDD in a Brazilian cohort of 45 individuals and characterized associated clinical features, as well as evaluated the effectiveness of whole-exome sequencing (WES) as a diagnostic tool for this condition. Patients previously negative for pathogenic copy number variants underwent WES, which was performed using a trio approach for isolated index cases (n = 31), only the index in isolated cases with parental consanguinity (n = 8) or affected siblings in familial cases (n = 3). Pathogenic/likely pathogenic variants were identified in 19 families (18 genes) with a diagnostic yield of approximately 45%. Nearly 86% of the individuals had global developmental delay/intellectual disability and 51% presented with behavioral disturbances. Additional frequent clinical features included facial dysmorphisms (80%), brain malformations (67%), musculoskeletal (71%) or cardiovascular (47%) defects, and short stature (54%). Our findings unraveled the underlying genetic basis of microcephaly in half of the patients, demonstrating a high diagnostic yield of WES for microcephaly and reinforcing its genetic heterogeneity. We expanded the phenotypic spectrum associated with the condition and identified a potentially novel gene (CCDC17) for congenital microcephaly.

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The emergence of clinically relevant mutations in the hepatitis B virus (HBV) genome has been a matter of great debate because of the possibility of escape from the host's immune system, the potential to cause more severe progression of liver diseases and the emergence of treatment-resistant variants. Here we characterized the circulating variants of HBV in Rondônia State, in the north of Brazil. Serum samples of 62 chronic HBV carriers were subjected to PCR assays and clinical data were collected. Mutations and genotypes were characterized through direct sequencing. The findings show the presence of subgenotypes A1 (54.83%, 34/62), D3 (16.13%, 10/62), F2 (16.13%, 10/62), A2 (4.84%, 3/62), D2 (3.23%, 2/62), D1 (1.61%, 1/62), D4 (1.61%, 1/62) and F4 (1.61%, 1/62). Deletions in the pre-S2 region were found in 13.79% (8/58) of the samples, mutations in the S gene in 59.68% (37/62) and RT mutations in 48.39% (30/62). We found a variable genotypic distribution in different locations and important mutations related to immune escape and drug resistance in Western Amazonia, which contributed to genetic surveillance and provided important information to help control the disease.

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Here, a study of NMOSD in Central America and the Caribbean with a multinational collaborative, multicentric and descriptive approach involving 25 institutions from 9 countries is presented. Demographics, clinical manifestations, expanded disability scale status (EDSS), brain and spinal cord MRI, serological anti-AQP4-IgG and anti-MOG-IgG antibodies, and cerebrospinal fluid (CSF) oligoclonal bands were included. A central serological repository utilized the cell-based assay. The specimens outside of this network employed diverse methodologies. Data were collected at the Gorgas Commemorative Institute of Health Studies (ICGES), Panama, and included 186 subjects, of which 84% were females (sex ratio of 5.6:1). Mestizos constituted 72% of the study group. The median age was 42.5 years (IQR: 32.0-52.0). Associated autoimmune diseases (8.1%) were myasthenia gravis, Sjögren's syndrome and systemic lupus erythematosus. The most common manifestation was optic neuritis-transverse myelitis (42.5%). A relapsing course was described in 72.3% of cases. EDSS scores of 0-3.5 were reported in 57.2% of cases and higher than 7.0 in 14.5%. Positive anti-AQP4-IgG antibody occurred in 59.8% and anti-MOG-IgG antibody in 11.5% of individuals. Antibody testing was lacking for 13.4% of patients. The estimated crude prevalence of NMOSD from Panama and the Dominican Republic was 1.62/100,000 (incidence of 0.08-0.41) and 0.73/100,000 (incidence 0.02-0.14), respectively. This multinational study contributes additional insights and data on the understanding of NMOSD in this Latin American region.

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RESUMEN Introducción: Existen más de 390 millones de personas infectadas y 20 000 muertes anualmente a causa del dengue en el mundo. El chikungunya ocasionó una larga epidemia en las Américas con más de 2 millones y medio de casos hasta el 2017. Objetivo: Identificar las características sociodemográficas y clínicas de los casos de dengue y chikungunya informados para el periodo 2014-2017 en Nariño, Colombia. Métodos: Se realizó un estudio observacional, descriptivo, de corte transversal. Se revisaron retrospectivamente las bases de datos del Instituto Departamental de Salud de Nariño y del Hospital Universitario Departamental de Nariño. Resultados: Para el periodo de estudio hubo 2 514 hospitalizaciones por dengue y 460 por chikungunya. Se identificaron 22 casos de dengue grave, con una muerte para el año 2017. La revisión de expedientes de 1 735 pacientes con información completa reveló que las manifestaciones clínicas más frecuentes para dengue fueron: fiebre (100 por ciento), cefalea (84,6 por ciento) y mialgias (83,7 por ciento), seguidos de artralgias, rash y dolor abdominal. El sexo masculino predominó en los casos de diagnóstico de dengue (56,8 por ciento) y el femenino en el diagnóstico de chikungunya (52,0 por ciento. Tanto dengue como chikungunya fueron más frecuentes en la población mayor de 40 años con el 24,5 por ciento y 27,2 por ciento, respectivamente. Conclusiones: La sintomatología similar y los casos complicados resaltan la necesidad de contar con diagnósticos oportunos y diferenciales y capacitación al personal de salud, apoyados por entidades gubernamentales. Se requiere generar programas de intervención enfocados a edades productivas y en regiones con condiciones medioambientales propicias para el desarrollo de vectores transmisores de enfermedades(AU)

Introduction: More than 390 million dengue cases and 20 000 deaths due to this condition are reported worldwide every year. Chikungunya caused a large epidemic in the Americas with more than two and a half million cases until the year 2017. Objective: Identify the clinical and socio-demographic characteristics of the dengue and chikungunya cases reported for the period 2014-2017 in Nariño, Colombia. Methods: A cross-sectional observational descriptive study was conducted. A retrospective review was carried out of the databases at Nariño Departmental Health Institute and Nariño Departmental University Hospital. Results: During the study period there were 2 514 hospital admissions with dengue and 460 with chikungunya. A total 22 severe dengue cases and one death were identified for the year 2017. Review of the medical records of 1 735 patients with complete information revealed that the most common clinical manifestations of dengue were fever (100 percent), headache (84.6 percent) and myalgia (83.7 percent), followed by arthralgia, rash and abdominal pain. A predominance was found of the male sex in dengue cases (56.8 percent) and of the female sex in chikungunya cases (52.0 percent). Both conditions were more frequent in the population aged over 40 years, with 24.5 percent and 27.2 percent, respectively. Conclusions: The similar symptoms and the presence of complicated cases highlight the need for timely differential diagnosis and the training of the health personnel, with the support of government agencies. It is required to develop intervention programs aimed at working ages and regions with environmental conditions favorable for the spread of disease(AU)

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BACKGROUND: To carry out a complete clinical, pathological, genetic and microbiological characterization of pediatric patients with molecular confirmed cystic fibrosis (CF) attending the Carlos Andrade Marín Hospital (HCAM) within the study period. METHODS: A cross-sectional analysis of the pediatric population with a confirmed diagnosis of CF disease who attended HCAM, one of the largest tertiary-level hospitals in Ecuador, between 2017 and 2018 was performed. All demographic, clinical and genetic variables were obtained from the electronic medical records (EMR) stored by the hospital. RESULTS: Forty seven patients with CF were included in the study. Gender distribution was similar between male (48.9%, n = 23) and female patients (51.1%, n = 24). The Tiffeneau-Pinelli index (FEV1/FVC) changed significantly after nine months post-diagnosis (85.55 ± 13.26; p < 0.05). The most common pathogenic genetic variants were F508del, found in 52.78% of the cohort (n = 19); H609R, found in 36.11% (n = 13); g.204099A > C, found in 14.1% (n = 7), followed by G85E and the N1303K with 11.11% (n = 3) each. CONCLUSIONS: To our best knowledge, this is the first study exploring the clinical, genetic and bacteriological profile of CF's patients in Ecuador. Within the cohort of patients, an important and unique genetic feature was characterized by the presence of the g.204099A > C and the c.206359C > A homozygous polymorphism as well as the presence of the H609R variant, a mutation only reported among Ecuadorians.

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INTRODUCTION: Neuropsychiatric systemic lupus erythematosus (NPSLE) is characterized by a heterogeneity of clinical manifestations. The absence of diagnostic criteria and the lack of clinical trials is a challenge in clinical practice. Areas covered: A literature review was performed to describe epidemiology, characterization (clinical, immunological, and imaging), diagnosis and treatment of NPSLE. Classification criteria have been the first step towards a uniform definition. More recently, different attribution models have been developed to help to determine if the NP event is due to SLE. Disease activity is a major risk factor for NP events. Cytokines and autoantibodies are associated with NP events, however, only a few studies have identified risk factors for individual NP events. Expert opinion: Further research needs to search for and validate biomarkers for NPSLE and individual NP events, including neuroimaging findings, attribution models, and serologic markers. This will be a fundamental step in planning randomized control trials in the treatment of NPSLE to improve outcome.

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El Lupus Eritematoso Sistémico (LES) es una enfermedad sistémica de etiología desconocida y con formas clínicas potencialmente mortales; puede generar disfunción de órganos vitales como riñón, pulmón o sistema nervioso. Se realizó una investigación de tipo descriptiva, transversal, cuyo objetivo fue caracterizar clínicamente a los pacientes con diagnóstico de LES ingresados en el Hospital Pediátrico Dr. Agustín Zubillaga durante el período 2009-2017. La muestra estuvo conformada por 19 casos, predominando escolares (42.1%) seguido por preescolares (31,6%). El promedio de edad fue de 10 años, con un rango entre 6 meses y 14 años. 10,6% de los pacientes tenían antecedentes maternos de LES y Artritis Reumatoide, respectivamente. La fiebre y el edema fueron las manifestaciones iniciales más frecuentes seguidas de artralgias y cefaleas. La nefritis lúpica se presentó en 52,53% de los casos seguida de alteraciones cardíacas como miocarditis y estenosis aórtica (15,79%). Anticuerpos antinucleares positivos se observaron en 45,45% de casos e hipocomplementemia en 22,73%. Se concluye que el LES está presente en la población pediátrica de nuestra región y suele presentarse como una enfermedad con manifestaciones sistémicas severas, principalmente renal y miocárdica, requiriendo hospitalización y tratamiento de remisión oportuno(AU)

Systemic Lupus Erythematosus (SLE) is a systemic disease of unknown etiology and with potentially fatal clinical forms; it can generate dysfunction of vital organs such as kidney, lung or nervous system. A cross-sectional descriptive field investigation was carried out to characterize clinically patients diagnosed with SLE admitted to the Hospital Pediátrico Dr. Agustín Zubillaga during the period 2009-2017. The sample included 19 cases, predominantly school children (42.1%) followed by preschoolers (31.6%). The average age was 10 years old, with a range between 6 months and 14 years. 10.6% of patients had a maternal family history of LES and rheumatoid arthritis. Fever and edema were the most frequent initial manifestations followed by arthralgia and headaches. Lupus nephritis occurred in 52.53% of the cases followed by cardiac alterations such as myocarditis and aortic stenosis (15.79%). Positive antinuclear antibodies were present in 45.45% of cases as well as hypocomplementemia in 22.73%. In conclusion, SLE is present in the pediatric population of our region and usually presents as a disease with severe systemic manifestations, mainly renal and myocardial, requiring hospitalization for timely remission treatment(AU)

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Objetivo: describir las características clínicas y epidemiológicas del queratocono en el Instituto Cubano de Oftalmología Ramón Pando Ferrer. Métodos: se realizó un estudio descriptivo en 72 pacientes (128 ojos) con queratocono, atendidos entre enero y diciembre de 2012, para identificar las enfermedades generales y oculares, tiempo de uso de lentes de contacto, manifestaciones clínicas, tipo de astigmatismo, poder queratométrico, espesor de la córnea central, topografía y microscopia confocal.Resultados: el 50 por ciento de los pacientes presentó disminución lenta y progresiva de la visión, con significativa ausencia de enfermedades generales. Fueron significativos (p< 0,05) el uso prolongado de lentes de contacto (67 por ciento), la mejoría de la agudeza visual con corrección y el astigmatismo miópico compuesto (85,2 por ciento). Predominó la disminución del espesor de la córnea central (493,2 µm). Los intervalos de poder queratométrico de la córnea central fueron igualmente representados (p= 0,211). Por topografía predominó el astigmatismo irregular (99,2 por ciento) y el cono central (87,5 por ciento). La microscopia confocal reflejó alteraciones en casi todas las capas de la córnea. Conclusiones: la queratoconjuntivitis alérgica es la enfermedad ocular más frecuentemente asociada al queratocono. Posee un patrón topográfico de astigmatismo irregular con cono central y agudeza visual con corrección, con lentes de contacto de 0,6. La microscopia confocal constituye una herramienta valiosa en el diagnóstico del queratocono(AU)

Objective: to describe the clinical and epidemiological characteristics of keratoconus treated at Ramón Pando Ferrer Cuban Institute of Ophthalmology. Methods: a descriptive study was conducted in 72 patients (128 eyes) with keratoconus, from January to December 2012, to identify general and ocular diseases, length of time wearing the contact lenses, clinical features, type of astigmatism, keratometric power and central corneal thickness, topography and confocal microscopy. Results: in the group, 50 percent had slow gradual decrease of vision, with no significant medical illnesses. Wearing contact lenses for a long time (67 percent), the improvement of visual acuity with correction and myopic compound astigmatism (85,2 percent) were significant (p< 0,05). Thinning of the central cornea (493,2 microns) predominated. Keratometric power intervals of the central cornea were equally represented (p= 0,211). The irregular astigmatism (99,2 percent) and the central cone (87,5 percent) prevailed in terms of topography. Confocal microscopy changes in almost all the corneal layers. Conclusions: Allergic keratoconjunctivitis is the most associated eye disease. It has topographic pattern of irregular astigmatism with central cone and corrected visual acuity, with 0,6 contact lenses. Confocal microscopy is a valuable tool in the diagnosis of keratoconus(AU)

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OBJETIVO: describir las características clínicas y epidemiológicas del queratocono en el Instituto Cubano de Oftalmología "Ramón Pando Ferrer". MÉTODOS: se realizó un estudio descriptivo en 72 pacientes (128 ojos) con queratocono, atendidos entre enero y diciembre de 2012, para identificar las enfermedades generales y oculares, tiempo de uso de lentes de contacto, manifestaciones clínicas, tipo de astigmatismo, poder queratométrico, espesor de la córnea central, topografía y microscopia confocal. RESULTADOS: el 50 por ciento de los pacientes presentó disminución lenta y progresiva de la visión, con significativa ausencia de enfermedades generales. Fueron significativos (p< 0,05) el uso prolongado de lentes de contacto (67 por ciento), la mejoría de la agudeza visual con corrección y el astigmatismo miópico compuesto (85,2 por ciento). Predominó la disminución del espesor de la córnea central (493,2 µm). Los intervalos de poder queratométrico de la córnea central fueron igualmente representados (p= 0,211). Por topografía predominó el astigmatismo irregular (99,2 por ciento) y el cono central (87,5 por ciento). La microscopia confocal reflejó alteraciones en casi todas las capas de la córnea. CONCLUSIONES: la queratoconjuntivitis alérgica es la enfermedad ocular más frecuentemente asociada al queratocono. Posee un patrón topográfico de astigmatismo irregular con cono central y agudeza visual con corrección, con lentes de contacto de 0,6. La microscopia confocal constituye una herramienta valiosa en el diagnóstico del queratocono(AU)

OBJECTIVE: to describe the clinical and epidemiological characteristics of keratoconus treated at "Ramón Pando Ferrer" Cuban Institute of Ophthalmology. METHODS: a descriptive study was conducted in 72 patients (128 eyes) with keratoconus, from January to December 2012, to identify general and ocular diseases, length of time wearing the contact lenses, clinical features, type of astigmatism, keratometric power and central corneal thickness, topography and confocal microscopy. RESULTS: in the group, 50 percent had slow gradual decrease of vision, with no significant medical illnesses. Wearing contact lenses for a long time (67 percent), the improvement of visual acuity with correction and myopic compound astigmatism (85,2 percent) were significant (p< 0,05). Thinning of the central cornea (493,2 microns) predominated. Keratometric power intervals of the central cornea were equally represented (p= 0,211). The irregular astigmatism (99,2 percent) and the central cone (87,5 percent) prevailed in terms of topography. Confocal microscopy changes in almost all the corneal layers. CONCLUSIONS: Allergic keratoconjunctivitis is the most associated eye disease. It has topographic pattern of irregular astigmatism with central cone and corrected visual acuity, with 0,6 contact lenses. Confocal microscopy is a valuable tool in the diagnosis of keratoconus(AU)

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