Data/hora: 10/06/2024 05:42:26

Provedor de dados: | 56
País: | Brazil
Título: | Variability of Vernier acuity measurements in untrained subjects of different ages
Autores: | Abbud,C.M.M.; Cruz,A.A.V.
Data: | 2002-02-01
Ano: | 2002
Palavras-chave: | Vernier acuity; Variability; Age.
Resumo: | The Vernier acuity of 50 normal untrained subjects (20 males and 30 females) was measured by the method of adjustment. Subjects were divided into five age ranges with 10 subjects in each age group: 5-10, 11-20, 21-30, 31-40, and 41-50 years. All subjects had normal visual acuity (20/20) and volunteered to participate in the experiment. Children were selected from a local school and adults recruited from the technical staff of the Department of Ophthalmology of the School of Medicine. Vernier acuity was higher in adults compared to children. Intraindividual variability was high and it was estimated that for most individuals of all age groups a range of 100 to 700 trials was necessary to obtain a mean with a precision of 10%. These results suggest that Vernier acuity variability is an obstacle to its use in clinical settings.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002000200011
Editor: | Associação Brasileira de Divulgação Científica
Relação: | 10.1590/S0100-879X2002000200011
Formato: | text/html
Fonte: | Brazilian Journal of Medical and Biological Research  v.35 n.2 2002
Fonte: | info:eu-repo/semantics/openAccess