J Korean Ophthalmol Soc.  2020 Apr;61(4):376-384. 10.3341/jkos.2020.61.4.376.

Optic Nerve Head Parameters of Healthy Children as Measured by OpticalCoherence Tomography

Affiliations
  • 1Myung-Gok Eye Research Institute, Department of Ophthalmology, Kim’s Eye Hospital, Konyang University College of Medicine, Seoul, Korea

Abstract

Purpose
To investigate optic nerve head (ONH) parameters as measured using optical coherence tomography (OCT) in healthy children.
Methods
Peripapillary areas were scanned by spectral-domain OCT in healthy eyes of children aged 5–17 years. ONH parameters were automatically determined by OCT, including the rim area, disc area, cup-to-disc ratio, and cup volume. The effects of age and refractive error on ONH parameters were evaluated.
Results
A total of 352 eyes of 352 subjects (mean age: 9.7 ± 3.6 years) were enrolled. The mean rim area, disc area, cup-to-disc ratio, and cup volume was 1.51 ± 0.27 mm2, 2.07 ± 0.39 mm2, 0.47 ± 0.16, and 0.163 ± 0.148 mm3, respectively. The mean rim area, disc area, cup-to-disc ratio by age was 1.58 ± 0.29 mm2, 2.18 ± 0.35 mm2, and 0.48 ± 0.17 in 5- to 8-year-olds; 1.46 ± 0.24 mm2, 2.04 ± 0.43 mm2, and 0.49 ± 0.15 for 9- to 12-year-olds; and 1.46 ± 0.22 mm2, 1.94 ± 0.35 mm2, and 0.44 ± 0.18 for 13- to 17-year-old. Higher myopia and older age were associated with a smaller rim area (p < 0.05).
Conclusions
The mean rim area, disc area, and cup-to-disc ratio as measured using OCT in healthy children were 1.51 mm2, 2.07 mm2, and 0.47, respectively. ONH parameters were significantly affected by age and refractive error.

Keyword

Age; Children; Optical coherence tomography; Optic disc; Optic nerve head
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