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Cranial Nerves: Types Part I01:14

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Cranial Pair II: The Optic Nerves.

Eloísa Herrera1, Marta Agudo-Barriuso2, Verónica Murcia-Belmonte1

  • 1Instituto de Neurociencias de Alicante (Consejo Superior de Investigaciones Científicas-Universidad Miguel Hernández, CSIC-UMH), Av. Santiago Ramón y Cajal, s/n., 03550, Sant Joan d'Alacant, Alicante, Spain.

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|October 12, 2018
PubMed
Summary
This summary is machine-generated.

The optic nerves (ONs) transmit visual information from the retina to the brain. This review covers ON development, associated human disorders, and the limited potential for optic nerve regeneration.

Keywords:
ON pathologiesaxonal degenerationaxonal growthaxonal regenerationoptic nerve developmentretinal ganglion cells

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Area of Science:

  • Neuroscience
  • Ophthalmology
  • Developmental Biology

Background:

  • The optic nerves (ONs) are crucial cranial nerves transmitting visual data from the retina to the brain.
  • Retinal ganglion cells (RGCs) are the sole retinal neurons responsible for this visual transmission.
  • ONs are complex structures involving RGC axons, glial cells, myelin, and meninges.

Purpose of the Study:

  • To review current knowledge on mammalian optic nerve formation mechanisms.
  • To discuss human disorders affecting optic nerve development and function.
  • To explore the potential for optic nerve regeneration.

Main Methods:

  • Literature review of optic nerve development.
  • Analysis of human optic nerve pathologies.
  • Discussion of optic nerve regeneration strategies.

Main Results:

  • Optic nerve formation involves precise guidance of RGC axons during embryonic development.
  • Injuries or degeneration of ONs/RGCs can lead to blindness due to lack of regeneration.
  • Current understanding of ON development and pathology is presented.

Conclusions:

  • Optic nerve development is a complex, guided process.
  • Optic nerve damage has severe consequences due to limited regenerative capacity.
  • Further research is needed to explore optic nerve regeneration possibilities.