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Corneal Anatomy

  • Miguel Gonzalez-AndradesEmail author
  • Pablo Argüeso
  • Ilene Gipson
Chapter
Part of the Essentials in Ophthalmology book series (ESSENTIALS)

Abstract

The cornea is a uniquely translucent, avascular tissue located on the anterior segment of the eye. It is surrounded and maintained by the adjacent corneoscleral limbus and the connective tissue of the conjunctiva with its adnexa. It plays a vital role in visual function by providing (1) the major refractive component of the visual system, (2) a translucent tissue that allows light passage to the lens and retina, and (3) a barrier that protects the eye from fluid loss and the external environment. These crucial functions result from the structure of the cornea, which is composed of three anatomical layers: epithelium, stroma, and endothelium. The limbus is the reservoir for the adult stem cell population that replenishes the cornea and is the site of termination of the vasculature and entry of the nerves that provide an extraordinarily rich innervation environment.

Keywords

Cornea Anatomy Histology Development Embryology Innervation Corneal epithelium Corneal stroma Corneal endothelium 

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Miguel Gonzalez-Andrades
    • 1
    Email author
  • Pablo Argüeso
    • 1
  • Ilene Gipson
    • 1
  1. 1.Massachusetts Eye and Ear and Schepens Eye Research Institute, Department of OphthalmologyHarvard Medical SchoolBostonUSA

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