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Macular structural characteristics in children with Down syndrome

  • Pediatrics
  • Published:
Graefe's Archive for Clinical and Experimental Ophthalmology Aims and scope Submit manuscript

Abstract

Purpose

This prospective study aimed to investigate macular structural characteristics in children with Down syndrome compared to those in healthy children.

Methods

Two groups of children (aged 6–16 years) were enrolled: children with Down syndrome (Down syndrome group, N = 17) and age-matched healthy children who were full-term at birth (control group, N = 18). Eligible patients had visual acuity of 20/100 or better and gestational age at birth of ≥ 36 weeks. Fourier domain optical coherence tomography was used for imaging of the macular retinal structure, and retinal volume scans centered on the macula were obtained. Central subfield thickness (CST) and the thickness of the inner and outer retinal layer regions were analyzed using the instrument’s segmentation software. The analysis of data is provided for the right eye only, since there was no significant difference between right and left eyes for either the Down syndrome or control groups.

Results

Children in the Down syndrome group generally had identifiable retinal structure. The CST for the full retina and inner and outer retinal layers were all significantly greater in the Down syndrome group than the control group (independent t test, all p < 0.05). Despite the significantly thicker macula, only about 29 % (5 of 17) of the right eyes of patients with Down syndrome had macular thickness outside the normal range. Visual acuity in the Down syndrome group was not directly correlated with increased CST (t = 1.288, r = 0.326, p = 0.202).

Conclusions

On average, CST in the Down syndrome group was greater than that in the control group, suggesting abnormal macular development in children with Down syndrome.

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Acknowledgments

We thank Afiah Hasnie, Alexander Walls, Jessica Felker and Paxton Ott for helping obtain patient data.

Conflict of interest

All authors certify that they have NO affiliations with or involvement in any organization or entity with any financial interest (such as honoraria; educational grants; participation in speakers’ bureaus; membership, employment, consultancies, stock ownership, or other equity interest; and expert testimony or patent-licensing arrangements), or non-financial interest (such as personal or professional relationships, affiliations, knowledge or beliefs) in the subject matter or materials discussed in this manuscript.

Financial support

This study is supported by an Indiana University–Purdue University Indianapolis (IUPUI) EMPOWER [Enhanced Mentoring Program with Opportunities for Ways to Excel in Research] award to Dr. Wang and a Research to Prevent Blindness (RPB) unrestricted grant to the Glick Eye Institute.

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Correspondence to Jingyun Wang.

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O’Brien, S., Wang, J., Smith, H.A. et al. Macular structural characteristics in children with Down syndrome. Graefes Arch Clin Exp Ophthalmol 253, 2317–2323 (2015). https://doi.org/10.1007/s00417-015-3088-x

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  • DOI: https://doi.org/10.1007/s00417-015-3088-x

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