Assessment of peripapillary retinal nerve fiber layer thickness using scanning laser polarimetry (GDx VCC) in normal Indian children.
Loading...
Date
2013-12
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Purpose: To obtain reference values of RNFL thickness in normal Indian children and to study
the association of RNFL thickness with central corneal thickness(CCT) and axial length(AL).
Materials and Methods: 200 normal Indian children (mean age 8.6 ± 2.9 yrs) were examined on the
GDxVCC. The inferior average (IA), superior average (SA), temporal-superior-nasal-inferior-temporal
(TSNIT) average and nerve fiber index (NFI) values were recorded and compared between males and
females as well as between the different age groups. The association of TSNIT average with AL and
CCT was examined. Results: Values for the RNFL parameters were-SA: 64.9 ± 9.7, IA: 63.8 ± 8.8, TSNIT
average: 53.5 ± 7.7 and NFI 21.5 ± 10.8. Superior, inferior and TSNIT averages did not differ significantly
between males and females (P = 0.25, P = 0.19, P = 0.06 respectively; Mann-Whitney U test). No significant
differences were found in TSNIT average across age groups. There was a statistically significant positive
correlation between CCT and TSNIT average (r = 0.25, r2 = 0.06, P < 0.001). The correlation TSNIT average
and AL(r = −0.12; r2= 0.01) was not significant (P = 0.2). Conclusion: Reference values for RNFL parameters
reported for Indian children are similar those reported in adults. There is a small correlation between central
corneal thickness and RNFL as reflected in average TSNIT.
Description
Keywords
Children, GDx variable corneal compensation, Indian, normal, retinal nerve fiber layer thickness
Citation
Khamar Mayuri B, Vasavada Vaishali, Shah Sajani K, Trivedi Rupal H, Thomas Ravi. Assessment of peripapillary retinal nerve fiber layer thickness using scanning laser polarimetry (GDx VCC) in normal Indian children. Indian Journal of Ophthalmology. 2013 Dec ; 61 (12): 728-733.