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Correlations between local peripapillary choroidal thickness and axial length, optic disc tilt, and papillo-macular position in young healthy eyes

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Listed:
  • Takehiro Yamashita
  • Taiji Sakamoto
  • Naoya Yoshihara
  • Hiroto Terasaki
  • Minoru Tanaka
  • Yuya Kii
  • Kumiko Nakao

Abstract

Optical coherence tomography (OCT) has made it possible for clinicians to measure the peripapillary choroidal thickness (ppCT) noninvasively in various ocular diseases. However, the ocular factors associated with the ppCT have not been conclusively determined. The purpose of this study was to determine the relationship between the local ppCT and the axial length, optic disc tilt, and the angle of the papillo-macular position (PMP) in healthy eyes. This was a prospective, observational cross-sectional study of 119 right eyes of 119 healthy Japanese volunteers. The ppCT was manually measured at eight sectors around the optic disc using the B-scan images of the Topcon 3D OCT RNFL 3.4 mm circle scan. The trajectory of the retinal pigment epithelium in the B-scan image was fitted to a sine curve using ImageJ, and the amplitude of the sine curve was used to determine the degree of the optic disc tilt. The PMP angle was determined in the color fundus photographs. The relationships between the ppCT and the axial length, the optic disc tilt, and PMP angle were determined by Spearman and multiple correlation analyses. The mean age was 25.8 ± 3.9 years and the mean axial length was 25.5 ± 1.4 mm. The ppCT was significantly and negatively associated with the axial length (R = -0.43 to -0.24, P

Suggested Citation

  • Takehiro Yamashita & Taiji Sakamoto & Naoya Yoshihara & Hiroto Terasaki & Minoru Tanaka & Yuya Kii & Kumiko Nakao, 2017. "Correlations between local peripapillary choroidal thickness and axial length, optic disc tilt, and papillo-macular position in young healthy eyes," PLOS ONE, Public Library of Science, vol. 12(10), pages 1-11, October.
    • Handle: RePEc:plo:pone00:0186453
    DOI: 10.1371/journal.pone.0186453
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    References listed on IDEAS

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    1. Hiroto Terasaki & Takehiro Yamashita & Naoya Yoshihara & Yuya Kii & Minoru Tanaka & Kumiko Nakao & Taiji Sakamoto, 2016. "Location of Tessellations in Ocular Fundus and Their Associations with Optic Disc Tilt, Optic Disc Area, and Axial Length in Young Healthy Eyes," PLOS ONE, Public Library of Science, vol. 11(6), pages 1-8, June.
    2. Takehiro Yamashita & Taiji Sakamoto & Naoya Yoshihara & Hiroto Terasaki & Yuya Kii & Minoru Tanaka & Kumiko Nakao, 2015. "Circumpapillary Course of Retinal Pigment Epithelium Can Be Fit to Sine Wave and Amplitude of Sine Wave Is Significantly Correlated with Ovality Ratio of Optic Disc," PLOS ONE, Public Library of Science, vol. 10(4), pages 1-10, April.
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    1. Hiroto Terasaki & Takehiro Yamashita & Naoya Yoshihara & Yuya Kii & Minoru Tanaka & Kumiko Nakao & Taiji Sakamoto, 2016. "Location of Tessellations in Ocular Fundus and Their Associations with Optic Disc Tilt, Optic Disc Area, and Axial Length in Young Healthy Eyes," PLOS ONE, Public Library of Science, vol. 11(6), pages 1-8, June.

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