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Papillary Diseases

  • Gangwei Cheng
  • Zhikun Yang
  • Rongpin Dai
  • Hanyi MinEmail author
Chapter

Abstract

The optic disc is situated 3 mm nasal to the macular, approximately 1.5 mm × 1.75 mm. The optic nerve is formed by convergence of 1–1.2 million ganglion cells axons at the optic disc. The central pit of the disc is called optic cup (Fig. 5.1). The blood vessels run through the optic disc onto the retina. Müller cells and inner limiting membrane are absent around the optic disc, which cause obvious edema of the rim during papilloedema.

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Copyright information

© Springer Nature Singapore Pte Ltd. and People's Medical Publishing House, PR of China 2020

Authors and Affiliations

  • Gangwei Cheng
    • 1
  • Zhikun Yang
    • 1
  • Rongpin Dai
    • 1
  • Hanyi Min
    • 1
    Email author
  1. 1.Department of OphthalmologyPeking Union Medical College Hospital and Chinese Academy of Medical ScienceBeijingP.R. China

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