Reference Values of Ocular Dimensions in Emmetropic Children in South West Nigeria
Journal Title: Journal of Medical Science And clinical Research - Year 2017, Vol 5, Issue 11
Abstract
Background: Ocular dimensions are important in determining the refractive status of the eye. Aim: To determine the reference values for ocular axial dimensions including anterior chamber depth (ACD), lens thickness (LT), and vitreous chamber depth (VCD) inemmetropic Nigerian Children. Methodology: A cross-sectional study of Four hundred and ninety five (468) children from selected pre nursery, nursery and primary schools with normal visual acuity were recruited into the study. Lens thickness, anterior chamber depth, and vitreous chamber depth were measured using a B-mode CLEA Vue 550 PHILLIP ultrasound Machine 2013 model, with a 4-12 MHz Linear transducer. Data were entered into personal computer and analyzed using the SPSS statistical package version 21. Results: The 468 children consisted of two hundred and forty one boys (48.7%) and two hundred and fifty four girls (51.3%) with a ratio of 1: 1.02. Mean age for the study participants as a whole, 8.81±3.81years. The mean ACD, LT, and VCD were 03.61±0.43cm, 03.71±0.39cm, and 17.41±01.15cm in the RE and 03.68±0.42cm, 03.77±0.38cm, and 17.42±0.10 in the LE, respectively. The reference values for ACD, LT and VCD were 3.52 – 3.69mm, 3.62 – 3.85 mm, and 17.17 – 17.65mm, respectively. There was correlation between the right and left eyes in all the dimensions. Only lens thickness shows sex differences in both right and left eyes. Conclusion: The reference ranges obtained in this study should be taken into consideration in determining ocular refractive status in children in our environment.
Authors and Affiliations
Temitope O Bodunde
Keywords
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