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KMID : 1159320180200040421
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Korean Journal of Vision Science
2018 Volume.20 No. 4 p.421 ~ p.429
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Study of Correlation between Macular Thickness, Retina Nerve Fiber Layer Thickness and Axial Length according to Refractive Errors in Children
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Choi Hyung-Seok
Leem Hyun-Sung
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Abstract
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Purpose : We identified correlation between macular thickness and RNFL (retina nerve fiber layer) measured by OCT and axial length in Korean children divided as three groups according to refractive errors.
Methods : In total, 134 eyes of 67 Korean children who experienced no eye disease and ophthalmology surgery were involved in this study and then divided as three groups such as hyperopic, emmetropic and myopic groups. Macular thickness and RNFL thickness were measured with Cirrus HD-OCT, and axial length was done with IOL Master.Macular thickness and RNFL thickness were measured by Cirrus HD-OCT, and axial length using IOL Master. Correlation between axial length and retinal thickness in three groups according to refractive errors was investigated.
Results : The type of refractive error measured by axial length was myopic, emmetropic and hyperopic groups in order, showing significant difference (p<0.05). The center thickness of macular was myopic, emmetropic and hyperopic groups in order, showing significant difference(p<0.05). The thicknesses of superior, nasal and inferior regions in peripheral macula were the thinnest in myopic group (p<0.05). It was shown that positive correlation was found between the center thickness of macula and axial length (r=0.283, p<0.05), while negative correlation was found between the peripheral thickness of RNFL and axial length. The temporal thickness of RNFL represented the thickest in myopic group, showing positive correlation with axial length(r=0.39, p<0.05). The superior, nasal and inferior thickness of RNFL represented negative correlation with axial length, showing statistically significant in the nasal thickness of RNFL(r=-0.23, p<0.05).
Conclusion : Through this study, we identified correlation between macular thickness, the thickness of RNFL and axial length using OCT in Korean children, and also found the differences in three refractive error groups.
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KEYWORD
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Children, Macular Thickness, Axial Length, Retina Nerve Fiber Layer
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