New visual acuity chart: modification for clinical practice and research.
Artículo
en Inglés
| IMSEAR
| ID: sea-39423
ABSTRACT
The authors created numeric optotypes by steps following the standard Sloan letters and developed a visual acuity test chart using Logarithm of the Minimal Angle of Resolution (Log MAR) such as the Early Treatment Diabetic Retinopathy Study (ETDRS) chart. Legibility of new numeric optotypes was presented in per cent of correct response at threshold. Only seven numbers (0, 2, 3, 5, 6, 8, 9) were used as optotypes and the average of per cent of correct response at threshold equal to 80.7 which was slightly less than standard Sloan letters (82%). The comparison between results of visual acuity level from the new chart and ETDRS showed that the ETDRS chart was slightly more legible than the new chart. It can be used universally especially with Thai people for clinical practice and research.
Texto completo:
Disponible
Índice:
IMSEAR (Asia Sudoriental)
Asunto principal:
Oftalmología
/
Reconocimiento Visual de Modelos
/
Lectura
/
Investigación
/
Tailandia
/
Pruebas de Visión
/
Índice de Severidad de la Enfermedad
/
Anciano
/
Femenino
/
Humanos
Tipo de estudio:
Estudio diagnóstico
/
Estudio de etiología
/
Estudio de incidencia
/
Estudio observacional
/
Estudio pronóstico
/
Factores de riesgo
País/Región como asunto:
Asia
Idioma:
Inglés
Año:
2003
Tipo del documento:
Artículo
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