0243/2019 - Estudo de validação sobre dificuldade visual autorrelatada entre estudantes dos cursos de graduação da Universidade Federal de Pelotas. Validation study on self-reported visual difficulty among the undergraduate students of the Federal University of Pelotas.
Os objetivos do estudo foram avaliar a prevalência de dificuldade visual autorrelatada entre acadêmicos de 18 a 39 anos de idade da Universidade Federal de Pelotas e realizar um estudo de validação de uma pergunta sobre dificuldade visual em uma subamostra dos participantes. Realizou-se um estudo transversal com a pergunta “Você tem alguma dificuldade para enxergar de perto e/ou de longe?”. Como padrão-ouro para o estudo de validação, a acuidade visual (AV) foi medida através da tabela de Snellen. Foi considerada AV alterada quando menor que 20/40 em qualquer olho. A prevalência de dificuldade visual autorrelatada foi de 37,3% (IC95%: 35,1-39,6) e a de AV menor que 20/40 em qualquer olho foi 6,9% (IC95%: 5,3-8,9). A pergunta apresentou sensibilidade 71,4% (IC95%: 57,8-82,7), especificidade 66,9% (IC95%: 63,4-70,2), valor preditivo positivo 13,8% (IC95%: 10,0-18,3) e valor preditivo negativo 96,9% (IC95%: 95,1-98,2). Os resultados indicaram alta prevalência de dificuldade visual autorrelatada entre os universitários e pergunta com sensibilidade e especificidade razoáveis e um alto valor preditivo negativo, podendo ser utilizada como triagem para consulta com oftalmologista e em estudos epidemiológicos com jovens adultos universitários.
Palavras-chave:
sensibilidade e especificidade, transtornos da visão, inquéritos e questionários, acuidade visual.
Abstract:
The objectives of the study were to evaluate the prevalence of self-reported visual difficulty among undergraduate students aged between 18 and 39 years old of the Federal University of Pelotas and to validate a question about visual difficulty, through the application of the Snellen chart, in a subsample of the participants. A cross-sectional study was carried out, and the question about visual difficulty was: \"Do you have some difficulty to see up close and/or far?\" As the gold standard, visual acuity (VA) was measured through the Snellen chart. Patients with VA less than 20/40 in any eye were considered to have reduced VA. The prevalence of self-reported visual difficulty was 37.3% (95%CI: 35.1-39.6) and VA less than 20/40 in any eye was 6.9% (95%CI: 5.3-8.9). The question showed sensitivity of 71.4% (95%CI: 57.8-82,7), specificity of 66.9% (95%CI: 63.4-70,2), positive predictive value of 13.8% (95%CI: 10.0-18.3), and negative predictive value of 96.9% (95%CI: 95,1-98,2). The results indicated a high prevalence of self-reported visual difficulty among university students. The question showed reasonable sensitivity and specificity and high negative predictive value and may be used for screening for ophthalmological evaluation in young university adults.
Keywords:
sensitivity and specificity, vision disorders, surveys and questionnaires, visual acuity.
Validation study on self-reported visual difficulty among the undergraduate students of the Federal University of Pelotas.
Resumo (abstract):
The objectives of the study were to evaluate the prevalence of self-reported visual difficulty among undergraduate students aged between 18 and 39 years old of the Federal University of Pelotas and to validate a question about visual difficulty, through the application of the Snellen chart, in a subsample of the participants. A cross-sectional study was carried out, and the question about visual difficulty was: \"Do you have some difficulty to see up close and/or far?\" As the gold standard, visual acuity (VA) was measured through the Snellen chart. Patients with VA less than 20/40 in any eye were considered to have reduced VA. The prevalence of self-reported visual difficulty was 37.3% (95%CI: 35.1-39.6) and VA less than 20/40 in any eye was 6.9% (95%CI: 5.3-8.9). The question showed sensitivity of 71.4% (95%CI: 57.8-82,7), specificity of 66.9% (95%CI: 63.4-70,2), positive predictive value of 13.8% (95%CI: 10.0-18.3), and negative predictive value of 96.9% (95%CI: 95,1-98,2). The results indicated a high prevalence of self-reported visual difficulty among university students. The question showed reasonable sensitivity and specificity and high negative predictive value and may be used for screening for ophthalmological evaluation in young university adults.
Palavras-chave (keywords):
sensitivity and specificity, vision disorders, surveys and questionnaires, visual acuity.
Meroni, J.C, Silva, B.G.C, Menezes, A.M.B. Estudo de validação sobre dificuldade visual autorrelatada entre estudantes dos cursos de graduação da Universidade Federal de Pelotas.. Cien Saude Colet [periódico na internet] (2019/ago). [Citado em 23/12/2024].
Está disponível em: http://cienciaesaudecoletiva.com.br/artigos/estudo-de-validacao-sobre-dificuldade-visual-autorrelatada-entre-estudantes-dos-cursos-de-graduacao-da-universidade-federal-de-pelotas/17317?id=17317
