The Orbit

  • Paolo Tortori-Donati
  • Andrea Rossi
  • Roberta Biancheri


The eye develops from three different cell layers: the forebrain neuroectoderm (retina, iris, optic nerve), the surface ectoderm (lens), and the mesoderm (vascular structures, sclera, choroid) [1, 2] (Figs. 31.1-3). The development of the globe and of the orbit are independent from each other [2]. Neural crest cells give rise to the mesenchymal tissue from which the adnexal structures, bony orbit, fat, and nerve sheaths originate, whereas the paraxial mesoderm lying beneath the neuroectoderm induces it to differentiate into the eye-forming tissue, nourishing and supporting the growth of the eye.


Optic Nerve Retinal Detachment Orbital Cellulitis Optic Stalk Optic Nerve Glioma 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Paolo Tortori-Donati
    • 1
  • Andrea Rossi
    • 1
  • Roberta Biancheri
    • 1
  1. 1.Department of Pediatric NeuroradiologyG. Gaslini Children’s Research HospitalGenoaItaly

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