Choroidal volume variations during childhood

Chiara Mapelli, Laura Dell'Arti, Giulio Barteselli, Silvia Osnaghi, Elena Tabacchi, Michele Clerici, Roberto Ratiglia, Francesco Viola

Research output: Contribution to journalArticle

Abstract

Purpose. We analyzed choroidal volume (CV) variations during childhood using enhanced depth imaging optical coherence tomography, and evaluated its association with age, axial length (AXL), sex, weight, and height. Methods. Imaging studies of the right eyes of 52 healthy children were reviewed and included in this study. Subjects underwent a complete ocular examination and AXL measurement, as well as a raster macular scan using the Heidelberg Spectralis device. The choroid was segmented manually. Results. Subjects included 21 males and 31 females, with mean age of 9 years (range, 2-17 years) and mean AXL of 22.8 ± 0.98 mm. Mean CV was 0.263 ± 0.068 mm3 for the foveal circle and 8.545 ± 1.822 mm3 for the total Early Treatment of Diabetic Retinopathy Study (ETDRS) grid. The CV of the nasal quadrant was significantly lower than all others (P <0.001). Total and foveal CV showed significant negative correlation with AXL after adjustment for age (P <0.001), and significant positive correlation with age after adjustment for AXL (P <0.001). Total CV was correlated significantly with sex after adjusting for AXL (P = 0.01), while no correlations were found between total CV and height or weight. The CV increased by 0.214 mm3 (2.5%) for every year, and decreased by 1.0 mm3 (11.7%) for every millimeter of axial length. Regression analysis confirmed a trend of higher CV in females than in males (P = 0.056). Conclusions. The CV increases with age during childhood, but decreases with AXL. This finding supports the hypothesis that the choroid grows progressively during childhood. Intersexual differences of CV also may be present.

Original languageEnglish
Pages (from-to)6841-6845
Number of pages5
JournalInvestigative Ophthalmology and Visual Science
Volume54
Issue number10
DOIs
Publication statusPublished - Sep 24 2013

Keywords

  • Choroidal thickness
  • Choroidal volume
  • Enhanced depth imaging
  • Optical coherence tomography

ASJC Scopus subject areas

  • Ophthalmology
  • Sensory Systems
  • Cellular and Molecular Neuroscience

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