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Accuracy of noncycloplegic refraction performed at school screening camps.
- Source :
-
Indian Journal of Ophthalmology . Jun2018, Vol. 66 Issue 6, p806-811. 6p. - Publication Year :
- 2018
-
Abstract
- <bold>Purpose: </bold>The aim of this study was to compare noncycloplegic refraction performed in school camp with that performed in eye clinic in children aged 6-16 years.<bold>Methods: </bold>A prospective study of children with unaided vision <0.2 LogMAR who underwent noncycloplegic retinoscopy (NCR) and subjective refraction (SR) in camp and subsequently in eye clinic between February and March 2017 was performed. A masked optometrist performed refractions in both settings. The agreement between refraction values obtained at both settings was compared using the Bland-Altman analysis.<bold>Results: </bold>A total of 217 eyes were included in this study. Between the school camp and eye clinic, the mean absolute error ± standard deviation in spherical equivalent (SE) of NCR was 0.33 ± 0.4D and that of SR was 0.26 ± 0.5D. The limits of agreement for NCR were +0.91D to - 1.09D and for SR was +1.15D to -1.06D. The mean absolute error in SE was ≤0.5D in 92.62% eyes (95% confidence interval 88%-95%).<bold>Conclusion: </bold>A certain degree of variability exists between noncycloplegic refraction done in school camps and eye clinic. It was found to be accurate within 0.5D of SE in 92.62% eyes for refractive errors up to 4.5D of myopia, 3D of cylinder, and 1.5D of hyperopia. [ABSTRACT FROM AUTHOR]
- Subjects :
- *REFRACTIVE errors
*EYE examination
*VISION testing
*VISUAL accommodation
*EYE care
Subjects
Details
- Language :
- English
- ISSN :
- 03014738
- Volume :
- 66
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Indian Journal of Ophthalmology
- Publication Type :
- Academic Journal
- Accession number :
- 129837485
- Full Text :
- https://doi.org/10.4103/ijo.IJO_982_17