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Revista da Escola de Enfermagem da USP
On-line version ISSN 1980-220X
DANTAS, Rosane Arruda; PAGLIUCA, Lorita Marlena Freitag and ALMEIDA, Paulo César de. Validation of a regionalized optometric scale for preschool children: nursing contribution. Rev. esc. enferm. USP [online]. 2009, vol.43, n.2, pp. 279-286. ISSN 1980-220X. http://dx.doi.org/10.1590/S0080-62342009000200004.
A regionalized figure scale (RAD) was developed. The objective was to validate the scale, evaluate the correlation between the visual acuity coefficients, verify the association between the tests, and verify the agreement between the measures. This is a triple-blind, experimental, random technology validation study performed on 246 students. Sensitivity was 88.6 RAD1 and 85.7 RAD2 for the right eye (RE), and 78.6 and 92.9 for the left eye (LE), whereas RE specificity was 95.3 RAD1 and 98.1 RAD2, and, 97.7 and 98.6 for the LE, respectively. As for the positive predictive value, RAD1 was 75.6 RE and 81.5 LE, and RAD2 88.2 RE and 89.7 LE. The negative predictive value in RAD1 was 98.0 RE and 97.3 LE, and in RAD2 97.6 RE and 99.1 LE. For the correlation and association in the RE and LE, p=0.0001. Cronbach's Alpha was 0.929. A statistically significant relation was found between the standard criterion and the scale.
Keywords : Child; Visual acuity; Validation studies; Nursing; Ophthalmology.