Accuracy and validity of IK4 handheld video keratometer measurements in children.
J AAPOS
; 15(4): 407-9, 2011 Aug.
Article
em En
| MEDLINE
| ID: mdl-21907130
ABSTRACT
The infant keratometer (IK4) is a custom handheld instrument that was designed specifically to allow measurement of corneal astigmatism in infants as young as 6 months of age. In this study, accuracy of IK4 measurements with the use of standard toric surfaces was within 0.25 D. Validity measurements obtained in 860 children aged 3-7 years demonstrated slightly greater astigmatism measurements in the IK4 than in the Retinomax K+. Measurement success was 98% when the IK4 was used. The IK4 may prove to be clinically useful for screening children as young as 3 years of age at high risk for corneal astigmatism.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Astigmatismo
/
Topografia da Córnea
Tipo de estudo:
Prognostic_studies
/
Screening_studies
Limite:
Child
/
Child, preschool
/
Humans
Idioma:
En
Ano de publicação:
2011
Tipo de documento:
Article