[Teleophthalmology-based diabetic retinopathy screening in a rural health basic area]. / Cribado de la retinopatía diabética mediante teleoftalmología en una zona básica de salud rural.

OBJECTIVE: To investigate the prevalence of diabetic retinopathy in a rural health basic area, and to establish the type, the severity degree and the relationship with sex and with another cardiovascular risk factors. DESIGN: Cross-sectional or prevalence descriptive study. LOCATION: Rural health basic area in Spain. Primary health care level. PARTICIPANTS: 500 patients over 18 years old with diabetes. MAIN MEASUREMENTS: Study of the retina through retinography under mydriasis, according to the Joslin Vision Network protocol, with the incorporation of a diagnostic reading center. Correlation of the existence and severity of the retinopathy with the cardiovascular risk factors -smoking, hypertension and hyperlipidemia- and the characteristics of the diabetes -type, evolution time, treatment, metabolic control and renal function-. RESULTS: The findings showed a 16.4% prevalence, with no significant differences between both sexes. The variables smoking and high blood pressure were related to the existence of retinopathy, and the variable years of diabetes evolution was correlated to both the existence and the severity of the retinopathy. In the study, 9.6% of the affected people were preferentially referred to the ophthalmologists because of sight-threatening retinopathy, and 6.8% of the people studied were referred due to other ophthalmological pathologies. CONCLUSIONS: It is possible to do the ophthalmological follow-up of 82% of the population with diabetes in primary health care, involving its professionals and team-working with the ophthalmologists. It is paramount to consider diabetic retinopathy within the global context of the person with diabetes, relating diabetic retinopathy with the other microvascular complications and cardiovascular diseases.

Visual impairment associated with diabetic retinopathy and macular edema: a hospital-based study.

BACKGROUND: Data on visual impairment (VI) in patients with diabetes are necessary in order to guide economic and human resources for reducing its prevalence. OBJECTIVE: To estimate the prevalence of diabetic retinopathy-related VI in patients with type 2 diabetes in a hospital-based setting. MATERIAL AND METHODS: Cross-sectional study carried out from 2014 to 2019 in an ophthalmology outpatient clinic. Any VI was defined as corrected pin-hole visual acuity in the better eye of ≥ 0.24 logMAR. The presence of diabetic retinopathy (DR), diabetic macular edema (DME) and cataract was evaluated. RESULTS: A total of 840 patients were included; median diabetes duration was 15 years. The prevalence of VI was 30%. DR was found in 62% of patients (30% had sight-threatening DR [STDR]), 17% had referable DME, and 3%, cataracts. The odds ratio for moderate or worse VI was 9.02 for STDR (p < 0.001), 5.89 for referable DME (p = 0.001), and 2.51 for cataract (p = 0.006). CONCLUSION: Thirty percent of participants had some degree of VI. Moderate or worse VI showed a strong association with STDR and referable DME.

ANTECEDENTES: Los datos sobre discapacidad visual (DV) en pacientes con diabetes son necesarios para orientar los recursos económicos y humanos que disminuyan su prevalencia. OBJETIVO: Estimar la prevalencia de DV relacionada con retinopatía diabética en pacientes con diabetes tipo 2 en un entorno hospitalario. MATERIAL Y MÉTODOS: Estudio transversal realizado de 2014 a 2019 en una consulta externa de oftalmología. Cualquier DV se definió como agudeza visual corregida con agujero estenopeico en el ojo con mejor visión (≥ 0.24 logMAR). Se evaluó la presencia de retinopatía diabética, edema macular diabético (EMD) y cataratas. RESULTADOS: Se incluyeron 840 pacientes; la mediana de duración de la diabetes fue de 15 años. La prevalencia de DV fue de 30 %. Se encontró retinopatía diabética en 62 % (30 % tenía retinopatía diabética que amenazaba la visión [RDAV]); 17 %, EMD y 3 %, cataratas. La razón de momios para DV moderada o de mayor gravedad fue de 9.02 para RDAV (p < 0.001), 5.89 para EMD referible (p = 0.001) y 2.51 para catarata (p = 0.006). CONCLUSIÓN: Treinta por ciento de los participantes tenía algún grado de DV. La DV moderada o de mayor gravedad mostró una fuerte asociación con RDAV y EMD referible.

Regional parafoveal vessel density changes in diabetic patients without retinopathy.

INTRODUCTION: Regional parafoveal vessel density changes have not been characterized in patients with type 2 diabetes without retinopathy. OBJECTIVE: To compare regional changes in vessel density between subjects without diabetes (group 1) and with diabetes without retinopathy (group 2). METHODS: Observacional, retrospective, cross-sectional, comparative study. Parafoveal vessel density by quadrants was compared between groups and between quadrants in each group; density of each quadrant and inner density were correlated, as well as the contribution of each quadrant to inner density (linear regression). RESULTS: Thirty-four eyes were analyzed in group 1 and 38 in group 2; in the latter, inner vessel density (20.75 vs. 21.85, p = 0.021) and that of superior quadrants (21.05 vs. 21.75, p < 0.001), and nasal quadrants (20.95 vs. 21.50, p = 0.023) were lower. In the regression analysis, superior and nasal quadrants had the largest contribution to the change in inner vessel density in group 2 (b = 0.361 and b = 0.294, respectively). CONCLUSIONS: Parafoveal inner vessel density decreases in diabetic patients without retinopathy at the expense of superior and nasal quadrants, which indicates that further evaluation is required for early microvascular disease to be detected.

INTRODUCCIÓN: Los cambios regionales de densidad vascular parafoveal no han sido caracterizados en los pacientes con diabetes tipo 2 sin retinopatía. OBJETIVO: Comparar los cambios regionales de densidad vascular entre sujetos sin diabetes (grupo 1) y con diabetes sin retinopatía (grupo 2). MÉTODOS: Estudio observacional, retrospectivo, transversal y comparativo. La densidad vascular parafoveal por cuadrantes se comparó entre grupos y entre cuadrantes en cada grupo; se correlacionó la densidad de cada cuadrante y la densidad interna, así como la contribución de cada cuadrante a la densidad interna (regresión lineal). RESULTADOS: Se analizaron 34 ojos en el grupo 1 y 38 en el grupo 2; en este fue menor la densidad vascular interna (20.75 versus 21.85, p = 0.021) y la de los cuadrantes superior (21.05 versus 21.75, p < 0.001) y nasal (20.95 versus 21.50, p = 0.023). En el análisis de regresión, los cuadrantes superior y nasal tuvieron la mayor contribución al cambio en la densidad vascular interna (b = 0.361, b = 0.294) en el grupo 2. CONCLUSIONES: La densidad vascular interna parafoveal disminuye en los pacientes diabéticos sin retinopatía, a expensas de los cuadrantes superior y nasal, por lo que se requiere evaluación adicional para detectar afecciones microvasculares tempranas.

[Reliability of retinography for the detection of hypertensive retinopathy in Primary Care]. / Fiabilidad de la retinografía para la detección de retinopatía hipertensiva en Atención Primaria.

OBJECTIVE: High blood pressure is one of the most prevalent diseases in general adult population. Its importance lies in the complications it causes in target organs such as kidney, heart, brain and eye. The aim of this work is to evaluate the agreement in the evaluation and interpretation of retinographies of hypertensive patients by family doctors and ophthalmologists. MATERIAL AND METHODS: This is a multicentric cross-sectional study in which 976 hypertensive patients from 50 to 70 years old were involved. They were participants of the «Investigating Silent Strokes in Hypertensives: a Magnetic Resonance Imaging Study¼ (ISSYS project) carried out in primary care centers of Barcelona and who agreed to undergo retinography. Six family physicians and 2 ophthalmologists evaluated the presence of retinal lesions through the Keith-Wagener-Barker criteria. RESULTS: The inter/intra-observer Kappa concordance of the evaluations was analyzed. The evaluation of the retinographies under the usual conditions of clinical practice obtained a high subjective component with slight and fair intra-observer concordance values in the Keith-Wagener-Barker criteria. Only the assessment of the microaneurysms showed a moderate concordance and the ratio artery/vein was the worst concordant. CONCLUSIONS: The evaluation of the retinographies in habitual conditions of clinical practice has a high subjective component that is reflected in slight and fair inter-intraobserver concordance values. The use of objective reading systems in the assessment of retinography in hypertensive patients would be useful.

[Prevalence and risk factors associated with diabetic retinopathy in Santander. Northern Spain]. / Prevalencia y factores de riesgo asociados a la retinopatía diabética en Santander. Norte de España.

OBJETIVE: To assess the prevalence and risk factors associated with diabetic retinopathy (DR) in Cantabria. DESIGN: ross-sectional population based study. LOCATION: Health center of Cantabria. PARTICIANTS: A random sample of 442 patients with type 2 diabetes. MAIN MEASUREMENTS: Non-mydiatric retinography, classifying them according to the International Clinical Diabetic Retinopathy Disease Severity Scale. The analyzed risk factors were: age, gender, age at diabetes onset, duration of diabetes, glycated haemoglobin levels (A1C), treatment of diabetes, blood pressure (systolic and diastolic), serum lipids concentration, body mass index, smoking status, hematocrit, pregnancy, serum vitamin D (25 OH D) levels, nephropathy and cardiovascular events. RESULTS: The prevalence of DR was 8.56% (CI: 5.81-11.32): Mild non-proliferative DR: 5.07% (CI: 2.89-7.25); Moderate non-proliferative DR: 1.38% (CI: 0.17-2.60); Severe non-proliferative DR: 0.27% (CI: 0.006-1.28); proliferative DR: 1.84% (CI: 0.46-3.22). Diabetic macular oedema: 2.30% (CI: 0.77-3.83). Mean age: 70 years, mean diagnostic age: 58.97 years, mean body mass index 29.86, 78.40% patients with hypertension, 67.30% dyslipidemia and median A1C: 6.7%. A deficit of 25 (OH) D was identified in 77% of patients. In the multivariate analysis, treatment of type 2 diabetes, body mass index, duration of diabetes and metabolic control of glycaemia were identified as independent risk factors. CONCLUSIONS: The prevalence of DR, compared with former studies, has decreased to 8.56%; this decrease is associated with the improvement in the control of modifiable risk factors. The associated independent risk factors were: treatment, body mass index, duration and control of diabetes. The variables antihypertensive treatment, cardiovascular events and nephropathy showed predictive value for DR.

Clasificación de patrones anormales de autofluorescencia retiniana en el edema macular diabético.

INTRODUCTION: Patients with diabetic macular edema can develop fundus autofluorescence alterations; thus far, these alterations have been more widely studied with scanning or confocal laser systems. OBJECTIVE: To describe and classify fundus autofluorescence abnormal patterns in patients with diabetic macular edema using the fundus autofluorescence system with a flash camera. METHOD: Observational, retrospective, cross-sectional, descriptive study. Fundus autofluorescence digital images of non-comparative cases with untreated diabetic macular edema, obtained and stored with a flash camera system, were assessed. Inter-observer variability was evaluated. RESULTS: 37 eyes of 20 patients were included. Lens opacity was the most common cause of inadequate image quality. Five different fundus autofluorescence patterns were observed: decreased (13%), normal (40%), focal hyper-autofluorescent (17%), multi-focal hyper-autofluorescent (22%) and plaque-like hyper-autofluorescent (8%). The kappa coefficient was 0.906 (p = 0.000). CONCLUSIONS: Different fundus autofluorescence phenotypic patterns are observed with flash camera systems in patients with diabetic macular edema. A more accurate phenotypic classification could help establish prognostic factors for visual loss or for the design of clinical trials for diabetic macular edema.

INTRODUCCIÓN: Los pacientes con edema macular diabético pueden presentar alteraciones en la autofluorescencia retiniana, que hasta el momento han sido analizadas más con sistemas de láser de barrido o confocales. OBJETIVO: Describir y clasificar los patrones anormales de autofluorescencia retiniana en pacientes con edema macular diabético mediante el sistema de autofluorescencia retiniana con cámara de flash. MÉTODO: Estudio observacional, retrospectivo, transversal y descriptivo. Se evaluaron imágenes digitales de autofluorescencia retiniana de casos no comparativos con edema macular diabético no tratado, obtenidas y almacenadas con el sistema de cámara de flash.Se evaluó la variabilidad interobservador. RESULTADOS: Se incluyeron 37 ojos de 20 pacientes. La opacidad de medios fue la causa más común de calidad inadecuada de imagen. Se observaron cinco diferentes patrones de autofluorescencia retiniana: disminuida (13 %), normal (40 %), hiperautofluorescente unifocal (17 %), hiperautofluorescente multifocal (22 %) e hiperautofluorescente en placa (8 %). El coeficiente kappa fue de 0.906 (p = 0.000). CONCLUSIONES: En pacientes con edema macular diabético se presentan diferentes patrones fenotípicos de autofluorescencia retiniana con los sistemas de cámara de flash. Una clasificación fenotípica más precisa pudiera ayudar a establecer factores pronósticos de pérdida visual o al diseño de ensayos clínicos relativos a edema macular diabético.

[Frecuencia y gravedad de la retinopatía del prematuro en una unidad de cuidados intensivos neonatales].

INTRODUCTION: Retinopathy of prematurity (ROP) is a disease where retinal blood vessels do not develop normally and may cause visual damage and blindness. OBJECTIVE: To determine the frequency and severity of ROP in preterm newborns. METHOD: A descriptive, comparative study was carried out within the 2009-2013 period. Patients' general characteristics were recorded, including gestational age and postmenstrual age at the moment of ophthalmologic examination, as well as ROP severity and type of treatment. RESULTS: A total of 326 preterm newborns were included: 47.8 % (n = 156) had ROP; in 21.1 % it was severe (stage ≥ 3). Median gestational age was 28 weeks in preterm newborns with ROP, median birth weight was 1000 g, and median postmenstrual age at ophthalmological examination was 36 weeks. Of the infants with ROP, 71.1 % received treatment: 63.4 % of those who had mild ROP and 100 % of those with severe ROP. CONCLUSIONS: ROP frequency was high, higher than that reported in developed countries and similar to that in developing countries. The frequency of severe ROP was also higher. It is necessary for effective programs for the detection and opportune treatment of ROP to be established.

INTRODUCCIÓN: La retinopatía del prematuro (ROP) es una enfermedad en la que los vasos sanguíneos de la retina no se desarrollan normalmente, lo que puede ocasionar daño visual y ceguera. OBJETIVO: Identificar la frecuencia y gravedad de la ROP en recién nacidos prematuros. MÉTODO: Estudio descriptivo comparativo realizado en el periodo 2009-2013. Se registraron características generales de los pacientes, edad posnatal y edad posconcepcional al momento de la exploración oftalmológica, así como gravedad y tratamiento de la ROP. RESULTADOS: Se incluyeron 326 recién nacidos prematuros: 47.8 % (n = 156) tuvo ROP, en 21.1 % fue grave (estadio ≥ 3). La mediana de la edad gestacional fue de 28 semanas en los recién nacidos prematuros con ROP, el peso al nacer fue de 1000 g y la edad posconcepcional a la exploración oftalmológica fue de 36 semanas. De los niños con ROP, 71.1 % recibió tratamiento, 63.4 % de aquellos que tuvieron ROP leve y 100 % de aquellos con ROP grave. CONCLUSIONES: La frecuencia de ROP fue alta, mayor a la reportada en los países desarrollados y similar a la de otros países en desarrollo. La frecuencia de ROP grave también fue mayor. Es necesario establecer programas efectivos de detección y tratamiento oportuno de ROP.

[Comparación de la densidad capilar parafoveal entre sujetos sanos y diabéticos con y sin retinopatía].

BACKGROUND: Parafoveal capillary density changes have not been characterized in type 2 diabetics without retinopathy. OBJECTIVE: To compare parafoveal capillary density between healthy subjects, and diabetics with and without retinopathy. METHOD: Observational, prospective, transversal and comparative study; subjects without diabetes (group 1), diabetics without retinopathy (group 2), with retinopathy (group 3) and with diabetic macular edema (group 4), without macular ischemia, were included. The study variable was parafoveal capillary density, and the predictor variables were the measures of the foveal avascular zone, retinal thickness and the group. The variables were compared between groups using Kruskal-Wallis and Spearman's Rho tests. RESULTS: One hundred and forty eyes were evaluated; parafoveal capillary density was higher in group 1 than in the rest (p < 0.05). Area, perimeter and diameter of the foveal avascular zone were higher in group 3. A positive correlation existed a positive between parafoveal capillary density and central field thickness in groups 1, 2 and 3. CONCLUSION: Parafoveal capillary density decreases as diabetes-induced damage increase; a reduction may exist in diabetics without retinopathy and normal retinal thickness and foveal avascular zone are normal. The clinical impact of this finding requires further evaluation.

ANTECEDENTES: Los cambios de densidad parafoveal no se han caracterizado en diabéticos tipo 2 sin retinopatía. OBJETIVO: Comparar la densidad capilar parafoveal entre sujetos sanos y diabéticos con y sin retinopatía. MÉTODO: Estudio observacional, prospectivo, transversal y comparativo. Se incluyeron sujetos sin diabetes (grupo 1), diabéticos tipo 2 sin y con retinopatía (grupos 2 y 3), y con edema macular (grupo 4), sin isquemia macular. La variable de estudio fue la densidad capilar parafoveal, y las variables predictoras fueron las mediciones de la ZAF, el grosor retiniano y el grupo. Se compararon las diferencias entre grupos mediante las pruebas de Kruskal-Wallis y Rho de Spearman. RESULTADOS: 144 ojos; la densidad capilar parafoveal del grupo 1 superó la de los restantes (p < 0.05). El área, el perímetro y el diámetro de la ZAF fueron mayores en el grupo 3. Existió correlación positiva entre la densidad capilar parafoveal y el grosor del campo central en los grupos 1, 2, y 3. CONCLUSIONES: La densidad capilar parafoveal disminuye conforme avanza el daño por diabetes tipo 2; puede existir una reducción en sujetos con diabetes sin retinopatía, con grosor retiniano y ZAF normales. El impacto clínico de este hallazgo requiere evaluación adicional.

El efecto de la panfotocoagulación con láser en edema macular diabético con el fotocoagulador Pascal® versus el láser de argón convencional.

Objetivo: El objetivo de este estudio fue comparar el efecto de la panfotocoagulación (PFC) en el edema macular diabético (EMD) en pacientes con retinopatía diabética proliferativa (RDP) con el fotocoagulador Pascal® (FP) vs. un fotocoagulador con láser de argón convencional (FLAC). Métodos: Se aleatorizó el uso de FP o FLAC en ochenta ojos con RDP y EMD con afectación central de la mácula. Ambos grupos tuvieron una evaluación de base de mejor agudeza visual corregida y fueron examinados con tomografía de coherencia óptica y angiografía con fluoresceína. Resultados: El número medio de disparos de láser en los grupos de FP y FLAC fue 1.726,10 y 752,00 en la sesión 1 y 1.589,00 y 830,00 (p < 0,001) en la sesión 2, respectivamente. El grosor foveal central (GFC) medio antes de comenzar el estudio fue 306 ± 100 y 314 ± 98 en los grupos de FP y FLAC, respectivamente. A las 8 semanas, el GFC medio fue 332 ± 116 y 347 ± 111 en los grupos de FP y FLAC, respectivamente (p > 0,05). La MAVC media fue similar durante el periodo de estudio y no hubo ninguna diferencia significativa entre los grupos (p > 0,05). Conclusiones: El FP y el FLAC mostraron efectos similares en el EMD en ojos con RDP y fueron igualmente seguros sin un aumento significativo del GFC.

Diabetic retinopathy in Tanzania: prevalence and risk factors at entry into a regional screening programme.

OBJECTIVE: The number of adults with diabetes in sub-Saharan Africa (SSA) is expected to almost double by 2035. This study investigated the prevalence of diabetic retinopathy (DR) and its risk factors at entry into a community-based screening programme. METHODS: All persons with diabetes screened for retinopathy at entry into a screening programme in Kilimanjaro Region, Tanzania between November 2010 and December 2014 were included. Fundus photographs were taken with a Topcon retinal camera following pupil dilation. Data were collected on BP, random blood sugar, duration of diabetes, BMI and visual acuity on entry. RESULTS: A total of 3187 persons were screened for DR. The prevalence of any DR was 27.9% (95%CI 26.4-29.5%) with background diabetic retinopathy (BDR), pre-proliferative diabetic retinopathy (PPDR) and proliferative diabetic retinopathy (PDR) having a prevalence of 19.1% (95% CI 17.7-20.4%), 6.0% (95%CI 5.2-6.8%) and 2.9% (95%CI 2.3-3.5%), respectively. Maculopathy was present in 16.1% (95%CI 14.8-17.4%) of participants. Multivariable logistic regression analysis for the presence of any DR found independent associations with duration of diabetes (P < 0.0001), systolic BP (P < 0.0001), random blood sugar (P < 0.0001) and attending a government hospital diabetic clinic (P = 0.0339). CONCLUSIONS: This study is the first to present data from a DR screening programme in SSA. The results will provide policymakers with data to aid planning of DR screening and treatment services in the African region. The study highlights the importance of managing comorbidities within DR screening programmes.

Vitreous rebleeding rate after vitrectomy or phacovitrectomy in patients with proliferative diabetic retinopathy: A retrospective study.

BACKGROUND: The most common complication after vitrectomy is the rebleeding in vitreous cavity. It is important to detect the different factors that can increase the vitreous rebleeding rate in these patients. OBJECTIVE: To carry out a retrospective review of the rate of vitreous rebleeding after vitrectomy or phacovitrectomy. METHOD: Retrospective, descriptive and comparative study of patients with a diagnosis of proliferative diabetic retinopathy with phacovitrectomy or vitrectomy procedure. Personal background data, type of surgical intervention and grade of the surgeon who carried out the procedure were obtained. RESULTS: 1227 files of diabetic patients with vitrectomy or phacovitrectomy were reviewed. 65% presented systemic arterial hypertension. The average glomerular filtration rate was 63.50 (±32.36) ml/min/1.73 m2 and glycosylated hemoglobin (HBA1C) of 8% (4.6 to 15%). In the comparison of variables, a significant difference in the rate of vitreous rebleeding was obtained comparing phacovitrectomy with vitrectomy. (p = 0.003), in the relationship between vitrectomy with vitreous rebleeding, an odds ratio of 1.44 was obtained. CONCLUSION: The results obtained show a lower rate of rebleeding in patients undergoing phacovitrectomy in patients with proliferative diabetic retinopathy.

[Bibliometric study and analysis of citation networks of visual screening in primary care]. / Estudio bibliométrico y análisis de redes de citación de los screening visuales en atención primaria.

AIM: Screenings make it possible to detect anomalies that can be treated and identify patients who require referral to a specialist. The objective is to identify the different areas of research and determine the most cited publications on screening in primary care. METHODS: An analysis of publications and visualization of citation networks has been carried out using the Citation Network Explorer software. The bibliographic search was carried out with the Web of Science (WOS) database using the search term: "screening AND (vision OR eye OR ocular OR visual)". RESULTS: We analyzed 16707 publications in all fields, 23919 citation networks have been found. The number of publications has increased, with 2021 being the year with the highest number. The majority are scientific articles and the predominant language is English. The most cited article is a global meta-analysis on the prevalence of glaucoma, showing the importance of screening for its early detection since it is essential to avoid blindness. Using the clustering function we found 8 groups with a significant number of publications where we have bibliography on certain eye diseases: glaucoma, diabetic retinopathy, pediatric amblyopia, keratoconus and dry eye. CONCLUSIONS: The main areas of study in relation to screening are the detection of diseases such as glaucoma, retinopathy of prematurity, keratoconus and dry eye. As well as the detection through visual analysis of childhood amblyopia and vision loss in elderly patients. It also gives importance to performing ocular motility tests in problems of acquired brain damage.

Non-arteritic anterior ischemic optic neuropathy as the only manifestation of a malignant hypertensive crisis: Report of a case.

Non-arteritic anterior ischemic optic neuropathy (NAION) is after glaucoma the most common optic neuropathy in patients over 50 years. It is known that high blood pressure (HBP) is an important risk factor for the development of NAION. It is also known that malignant arterial hypertension (MAH) could be accompanied by optic disc edema. However, MAH has not classically been considered a cause of NAION. We report the case of a 32-year-old patient who presented irreversible visual loss with a pattern compatible with NAION as the only manifestation of a hypertensive crisis.

Experience with the use of intravitreal bevacizumab in cases with type I retinopathy of prematurity in a Latin American country.

In retinopathy of prematurity (ROP) type I, the use of intravitreal bevacizumab (IVB), which is an inhibitor of endothelial growth factor (VEGF), has become popular despite not being a therapy approved by regulatory agencies. However, IVB has shown positive effects in halting disease progression at lower costs compared to other anti-VEGF therapies (ranibizumab or aflibercept). In this report, we present the experience during the treatment with IVB of 102 Colombian children with ROP type I, with a success rate of 98% (100). Complications occurred in 3.9% (4). Finally, we conclude that a single dose of IVB is an effective therapy for the management of ROP type I, with a lower risk of complications and retreatment.

Perception of patients with retinal pathology on aspects of visual function and their management.

BACKGROUND AND OBJECTIVE: Age-related macular degeneration (AMD) and diabetic retinopathy (DR) are highly prevalent. OBJECTIVE: To explore perceptions of patients with AMD or DR about the impact of the disease and treatment on their daily living activities. MATERIALS AND METHODS: Semi-structured interviews with a questionnaire developed from validated patient reported outcomes questionnaires. The questionnaire consisted of 19 questions about the disease and 9 about the treatment. The questions (items) were answered on a scale from 1 to 9. In addition, the patient interviewed was invited to make free comments on each question. Nine patients with AMD and 9 with DR were interviewed by videoconference or telephone call. A quantitative analysis of the responses and a qualitative analysis of the comments were carried out. RESULTS: The most relevant item for patients with AMD or DR is "Recognize people when they are nearby", and "Read text in normal size font in a newspaper or book", followed, in patients with AMD, by "Do things what you would like" and, in patients with DR, "Feeling frustrated by the vision problems." Regarding the treatment, the most relevant aspects for both groups is that the treatment works and receiving appropriate information before and after the treatment. The qualitative comments were focused to the disease, the treatment, and to the role of doctors and the health system. CONCLUSION: Quantitative responses and free comments can be useful to improve the care of patients with AMD or DR by physicians and the health system.

Comparative effectiveness of two lipid emulsions in preventing retinopathy of prematurity in preterm infants requiring parenteral nutrition.

OBJECTIVES: The main aim was to compare the effects of 2 parenteral lipid emulsions on retinopathy of prematurity (ROP) incidence, severity, and need for treatment. Secondary aim was to compare the effect on weight gain in the first 6 weeks of life. METHODS: Single-center, observational, retrospective study analyzing preterm infants with a gestational age (GA) <31 weeks and a birth weight <1251 g born between April 2015 and December 2018. The infants' medical records were reviewed to collect clinical data. Parenteral nutrition (PN) details were obtained from the hospital pharmacy database. RESULTS: In total, 180 patients were included: 90 received ClinOleic® and 90 received SMOFlipid®. No significant differences were observed for the incidence of ROP (40% in ClinOleic® group and 41% in SMOFlipid® group, p=.88) or ROP requiring treatment (4% and 10%, respectively, p=.152). Weekly weight gain was similar in the 2 groups. CONCLUSIONS: This study showed no difference between the 2 groups regarding ROP, ROP requiring treatment, or weekly weight gain in the first 6 weeks of life.

Comparative effectiveness of two lipid emulsions in preventing retinopathy of prematurity in preterm infants requiring parenteral nutrition. / [Artículo traducido] Efectividad comparativa de 2 emulsiones lipídicas en la prevención de la retinopatía del prematuro en neonatos pretérmino que requieren nutrición parenteral.

OBJECTIVES: The main aim was to compare the effects of two parenteral lipid emulsions on retinopathy of prematurity (ROP) incidence, severity, and need for treatment. Secondary aim was to compare the effect on weight gain in the first 6 weeks of life. METHODS: Single-center, observational, retrospective study analyzing preterm infants with a gestational age < 31 weeks and a birth weight < 1,251 g, born between April 2015 and December 2018. The infants' medical records were reviewed to collect clinical data. Parenteral nutrition details were obtained from the hospital pharmacy database. RESULTS: In total, 180 patients were included: 90 received ClinOleic® and 90 received SMOFlipid®. No significant differences were observed for the incidence of ROP (40% in ClinOleic® group and 41% in SMOFlipid® group, p=0.88) or ROP requiring treatment (4% and 10% respectively, p=0.152). Weekly weight gain was similar in the two groups. CONCLUSIONS: This study showed no difference between the two groups regarding ROP, ROP requiring treatment or weekly weight gain in the first 6 weeks of life.

Radiation retinopathy vs. ocular ischemic syndrome: how to reach the diagnosis?

We present a case of diagnostic interest; we present the differential diagnosis and the complementary tests necessary to reach it, in addition to highlighting the importance of a correct collection of background and clinical history. A 54-year-old woman with a history of carcinoma of the floor of the mouth treated with radiotherapy and chemotherapy develops ischemic retinopathy. It was necessary to perform a systemic study and differential diagnosis with entities such as ocular ischemic syndrome and radiation retinopathy, due to the similarity in the clinical findings found. Radiation retinopathy should be ruled out in any patient with visual impairment and a history of radiotherapy treatment. A broad differential diagnosis and systemic study are required to rule out entities such as ocular ischemic syndrome and diabetic retinopathy, in addition to early treatment to avoid possible complications.

Functional results in children with retinopathy of prematurity treated with intravitreal bevacizumab.

BACKGROUND/AIM: The aim of the study is to describe the efficacy and to determine the functional outcome in terms of visual acuity and refractive defect of a single dose of intravitreal bevacizumab in patients with high-risk ROP type 1. METHODS: In this retrospective clinical study patients diagnosed between December 2013 and January 2018 with high-risk pre-threshold ROP type 1 and treated with intravitreal bevacizumab were selected. All patients were treated following the established protocol at our centre. Those patients with less than three-year follow-up were excluded. Visual acuity and cycloplegic refraction in the last visit were registered. Treatment efficacy was defined as the absence of retreatment with intravitreal anti-VEGF or laser during follow-up. RESULTS: A total of 38 infants (76 eyes) were included in the analysis. Twenty infants (40 eyes) completed visual acuity testing. Mean age was 6 years (IQR: 4-9). Median visual acuity was 0.8 (IQR: 0.5-1). Thirty-four eyes (85%) had good visual acuity (greater than or equal to 0.5). Thirty-seven patients (74 eyes) had cycloplegic refraction measured. Median spherical equivalent at the last visit was +0.94 (IQR: -0.25; 1.88). Treatment success rate was 96.05%. CONCLUSION: Intravitreal bevacizumab treatment showed good functional outcome in patients with high-risk ROP type 1. In our study, good response to treatment was observed with a success rate over 95%.

[Retinal alterations detected by non-mydriatic retinal camera screening and referral to ophthalmology in a population with high cardiovascular risk]. / Alteraciones retinianas detectadas por screening con cámara retinal no midriática y derivación a oftalmología en una población de alto riesgo cardiovascular.

OBJECTIVE: To describe the main retinal alterations detected by non-mydriatic retinal camera screening and to evaluate factors related to referral to ophthalmology in a population at high cardiovascular risk in Palmira, Colombia. MATERIALS AND METHODS: Cross-sectional observational study, which included 11,983 photographic imaging records of patients with hypertension and diabetes mellitus from Gesencro's S.A.S. comprehensive chronic disease care program between 2018 and 2020. Risk factors associated to referral to ophthalmology were evaluated with logistic regression, and crude and adjusted ORs (odds ratios) were obtained. RESULTS: A total of 11,880 records were analyzed; 67.7±12years old, and 69.5% were women. Among the retinal alterations were patients with diabetic retinopathy classified as more than mild in 10% and gradeI hypertensive retinopathy in 54.9% right eye, 51.9% left eye. Macular edema was also identified. Only 2069 patients (17.4%) required referral to ophthalmology, and for imaging control 82.6%. In the multivariate analysis, the risk factors associated with the probability of being referred were male gender, age 60years and older, glycosylated hemoglobin out-of-target, advanced chronic kidney disease and the microalbumin-to-creatinine ratio moderate to severely elevated. CONCLUSION: This study makes it possible to determine the importance of screening with a non-mydriatic retinal camera in patients at high cardiovascular risk to detect retinal abnormalities and assess risk factors associated with referral to ophthalmology. Early documentation of ocular compromise in these patients could prevent and avoid visual impairment and blindness.