¿Cómo realizamos el cribado visual en Atención Primaria? / How is vision screening performed in primary care?

Introducción: la ambliopía es la causa más común de pérdida de visión prevenible en los países desarrollados. Dicha prevención depende de una detección y tratamiento precoces mediante un adecuado cribado visual en la infancia. Nuestro objetivo es describir la situación del cribado visual en Atención Primaria en España y su relación con la formación de los profesionales. Material y métodos: estudio observacional descriptivo mediante encuesta telemática a los pediatras de Atención Primaria acerca de sus conocimientos sobre el desarrollo visual y las técnicas de cribado, material y formación al respecto. Análisis estadístico descriptivo y univariado en busca de relación entre la formación recibida y sus conocimientos. Resultados: el 79,3% de los participantes acierta más de la mitad de las preguntas teóricas. El 82,8% tiene optotipos estandarizados y el 30,7%, el test de Lang. El 72,7% conoce la distancia óptima y el 76,6% la altura óptima para explorar la agudeza visual con optotipos. El 50%, 68,3% y 44,5% realiza el reflejo rojo, el test de Hirschberg y el Cover test en las revisiones indicadas, respectivamente. Más del 90% conoce los criterios de derivación al oftalmólogo. El 3,1% ha recibido formación institucional y el 54,8% autónoma. Existen diferencias en la puntuación obtenida entre los profesionales según la formación recibida. Conclusiones: se detectan aspectos a mejorar. Se debe explorar el reflejo rojo en todas las revisiones del lactante y la alineación ocular desde los 6 meses, así como disponer y mejorar la utilización del test de Lang y de optotipos estandarizados. Existe relación entre un mayor nivel de conocimientos teóricos y prácticos y la formación recibida (AU)

Introduction: amblyopia is the most frequent cause of preventable vision loss in developed countries. Its prevention depends on early detection and treatment through adequate vision screening in childhood. Our objective was to describe the current situation in vision screening at the primary care level in Spain and its association with the training of professionals.Material and methods: observational descriptive study via a remote survey of primary care paediatricians of their knowledge on visual development and vision screening techniques, equipment and training. We conducted a statistical descriptive and univariate analysis to assess the association between the training received and the level of knowledge. Results: of all respondents, 79.3% answered the theoretical questions correction, 82.8% had standardised optotypes and 30.7% used the Lang test. Also, 72.7% knew the adequate distance and 76.6% the optimal height to assess visual acuity with optotypes. Fifty percent used the red reflex test, 68.3% the Hirschberg test and 44.5% the cover test in the appropriate check-ups. As regards training, 3.1% received it from their institutions, and 54.8% independently. Over 90% knew the criteria for referral to the ophthalmologist. We found differences in the scores of the respondents based on the training received.Conclusion: we identified opportunities for improvement: the red reflex test should be performed during all infant check-ups and ocular alignment checked from 6 months, and the Lang test and standardised optotypes should be available and their use improved. Higher levels of theoretical and practical knowledge are positively correlated with the amount of training received by health professionals. (AU)

Análise da espessura macular pela tomografia de coerência óptica no edema macular refratário de origem diabética após aplicação de triancinolona intravítrea / Macular thickness analysis by optic coherence tomography in refractory diabetic macular edema treated with intravitreous triamcinolone

OBJETIVO: Avaliar o efeito da aplicação intravítrea de triancinolona na espessura macular medida pela tomografia de coerência óptica (Stratus-OCT), pressão intra-ocular e acuidade visual no tratamento do edema macular diabético não responsivo ao tratamento prévio com fotocogulação a laser, no período de 6 meses. MÉTODOS: Foram estudados 21 indivíduos (22 olhos) submetidos a exame oftalmológico completo, medida da acuidade visual, pressão intra-ocular e análise pela tomografia de coerência óptica, tratados previamente com no mínimo 2 sessões de laser. Os indivíduos participantes do estudo foram tratados com aplicação intravítrea de acetato triancinolona na dose de 4 mg / 0,1 ml. As visitas de acompanhamento foram agendadas no 1º dia pós-aplicação, 1º, 3º e 6º meses. Foram estudados o resultado visual e anatômico assim como as possíveis complicações relacionadas com o procedimento da aplicação intravítrea. RESULTADOS: O estudo demonstrou redução significativa da espessura macular média analisada pelo OCT nos 1º, 3º e 6º meses pós-aplicação (p=0,001), acompanhado de melhora da acuidade visual média (p<0,001). A espessura macular central média ± DP na primeira visita foi de 399 ± 121 µm e diminuiu em 39,9 por cento (239 ± 53 µm) no primeiro mês (p<0,001), 35,5 por cento (255 ± 93 µm) no terceiro mês (p<0,001) e 18,1 por cento (326 ± 135 µm) no sexto mês (p=0,001). A melhora da acuidade visual média foi de 18 e 16 letras na tabela ETDRS nos 3º e 6º meses respectivamente. As complicações relatadas foram o aumento da pressão intra-ocular em 7 olhos (33,3 por cento casos). CONCLUSÕES: Foi observada redução da média das espessuras da retina ao longo de todo o tempo de acompanhamento, com aumento significante da espessura macular entre o 3º e 6º mês. Foi observado melhora estatisticamente significante da média da acuidade visual ao final do acompanhamento, porém não houve melhora entre o 3º e 6º mês.

PURPOSE: To assess the effect of intravitreal injections of triamcinolone on macular thickness (Stratus-OCT), intra-ocular pressure and visual acuity, in the treatment of diabetic macular edema non-responsive to previous laser photocoagulation, over a 6-month period. METHODS:The study included 21 subjects (22 eyes) who underwent complete ophthalmologic examination, measurements of visual acuity and intraocular pressure, and OCT, previously treated with at least 2 laser applications. The study participants were treated with 4 mg / 0.1 ml intravitreal triamcinolone. Follow-up visits were scheduled for the 1st day after treatment, and after 1, 3 and 6 months. Visual and anatomical results, as well as possible complications associated with the intravitreal injection procedure were studied. RESULTS: The study showed a significant reduction in mean macular thickness, assessed by OCT at 1, 3 and 6 months post-treatment (p=0.001), combined with an improvement of the mean visual acuity (p<0.001). Central macular thickness mean ± SD value on the first visit was 399 (±121 µm); it was reduced by 39.9 percent (239 ± 53 µm) at the first month (p<0.001), 35.5 percent (255 ± 93 µm) at the third month (p<0.001), and 18.1 percent (326 ± 135 µm) at the sixth month (p=0.001). The improvement in mean visual acuity was of 18 and 16 letters on the ETDRS table, on the 3rd and 6th month, respectively. Reported complications were an increase in intraocular pressure in seven eyes (33.3 percent of the cases). CONCLUSIONS: A reduction in mean retinal thickness was observed throughout the entire follow-up period, with significant increase in macular thickness between the 3rd and 6th month. The mean visual acuity showed statistically significant improvement at the end of the follow-up period, but no change was noticed between the 3rd and 6th month.