Accuracy and validity of IK4 handheld video keratometer measurements in children.
Accuracy and validity of IK4 handheld video keratometer measurements in children.
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DOI：
10.1016/j.jaapos.2011.04.002
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发表时间：
2011-08
期刊：
影响因子：
1.6
通讯作者：
Dobson, Velma
中科院分区：
文献类型：
--
作者：
Harvey, Erin M.;Miller, Joseph M.;Schwiegerling, Jim;Clifford-Donaldson, Candice E.;Green, Tina K.;Messer, Dawn H.;Dobson, Velma
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 using standard toric surfaces was within 0.25 D. Validity measurements obtained in 860 children aged 3–7 years demonstrated slightly higher astigmatism measurements in the IK4 than in the Retinomax K+. Measurement success was 98% using the IK4. The IK4 may prove to be clinically useful for screening children as young as 3 years of age at high risk for corneal astigmatism.
影响因子：
1.4
作者：
Harvey, EM;Dobson, V;Miller, JM
通讯作者：
Miller, JM
影响因子：
1.4
作者：
Thibos, LN;Wheeler, W;Horner, D
通讯作者：
Horner, D
影响因子：
1.4
作者：
Dobson, V;Miller, JM;Harvey, EM
通讯作者：
Harvey, EM