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Attenuated Age-Related Thinning of Peripapillary Retinal Nerve Fiber Layer in Long Eyes

Authors
 Eun-Ji Kim ; Samin Hong ; Gong Je Seong ; Eun Suk Lee ; Chan Yun Kim 
Citation
 Korean Journal of Ophthalmology, Vol.25(4) : 248~251, 2011 
Journal Title
 Korean Journal of Ophthalmology 
ISSN
 1011-8942 
Issue Date
2011
Abstract
PURPOSE: To assess the impact of axial length on the age-related peripapillary retinal nerve fiber layer (RNFL) thinning. METHODS: This cross-sectional observational comparative case series included 172 eyes from 172 healthy Korean subjects. Peripapillary RNFL thickness was measured using an Optic Disc Cube 200 x 200 scan of spectral domain Cirrus HD OCT and the axial length was measured using IOL Master Advanced Technology. In age groups based on decade, the normal ranges of peripapillary RNFL thickness for average, quadrant, and clock-hour sectors were determined with 95% confidence intervals. After dividing the eyes into two groups according to axial length (cut-off, 24.50 mm), the degrees of age-related RNFL thinning were compared. RESULTS: Among the eyes included in the study, 53 (30.81%) were considered to be long eyes (axial length, 25.04 +/- 0.48 microm) and 119 (69.19%) were short-to-normal length eyes (axial length, 23.57 +/- 0.60 microm). The decrease in average RNFL thickness with age was less in long eyes (negative slope, -0.12 microm/yr) than in short-to-normal length eyes (negative slope, -0.32 microm/yr) (p < 0.001). CONCLUSIONS: Age-related thinning of peripapillary RNFL thickness is attenuated in long eyes compared to short-to-normal length eyes.
URI
http://ir.ymlib.yonsei.ac.kr/handle/22282913/94331
DOI
10.3341/kjo.2011.25.4.248
Appears in Collections:
1. 연구논문 > 1. College of Medicine > Dept. of Ophthalmology
Yonsei Authors
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