RT - Journal
TY - JOUR
A1 - Khurana, Rolli
A1 - Tibrewal, Shailja
A1 - Ganesh, Suma
A1 - Tarkar, Rajoo
A1 - Nguyen, Phuong
A1 - Siddiqui, Zeeshan
A1 - Dasgupta, Shantanu
T1 - Accuracy of noncycloplegic refraction performed at school screening camps
YR - 2018/6/1
JF - Indian Journal of Ophthalmology
JO - Indian J Ophthalmol
SP - 806
OP - 811
VO - 66
IS - 6
UL - https://journals.lww.com/ijo/pages/default.aspx/article.asp?issn=0301-4738;year=2018;volume=66;issue=6;spage=806;epage=811;aulast=Khurana;t=5
DO - 10.4103/ijo.IJO_982_17
N2 -
Purpose: 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. Methods: 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. Results: 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%). Conclusion: 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.
ER -