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Optic Tract

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Encyclopedia of Ophthalmology

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Definition

The optic tract (OT) is the portion of the optic pathway that connects the optic chiasm to the lateral geniculate body (LGB) (Cummings 2013). Each OT contains the ipsilateral uncrossed temporal nerve fibers and contralateral nasal crossed nerve fibers that originate from the axons of the retinal ganglion cells (Binder et al. 2010). The blood supply of the OT derives from the anterior choroidal and posterior communicating arteries (Kanski and Bowling 2013). Damage to the OT may cause a contralateral relative afferent pupillary defect (RAPD), contralateral homonymous hemianopsia, and band optic atrophy (Friedman and Kaiser 2007).

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References

  • Cummings TJ (2013) Optic nerve. Ophthalmic pathology: a concise guide. Springer, New York, p 181

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  • Binder DK, Sonne C, Fischbein NJ (2010) Optic nerve. Cranial nerves: anatomy, pathology, imaging. Springer, New York, pp 9–23

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  • Kanski JJ, Bowling B (2013) Neuro-ophthalmology. Synopsis of clinical ophthalmology. Saunders, Philadelphia, pp 351–353

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  • Friedman NJ, Kaiser PK (2007) Neuro-ophthalmology. Essentials of ophthalmology. Saunders, Philadelphia, pp 47–86

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Authors and Affiliations

  1. Department of Ophthalmology, The Methodist Hospital, 6560 Fannin Street, Scurlock 450, Houston, TX, 77030, USA

    Samantha Chao, Sumayya J. Almarzouqi, Michael L. Morgan & Andrew G. Lee

  2. Departments of Ophthalmology, Neurology, and Neurosurgery, Weill Cornell Medical College, Houston, TX, USA

    Andrew G. Lee

  3. Department of Ophthalmology, The University of Texas Medical Branch, Galveston, TX, USA

    Andrew G. Lee

  4. Department of Ophthalmology, Baylor College of Medicine, Houston, TX, USA

    Andrew G. Lee

  5. Department of Ophthalmology, The University of Iowa Hospitals and Clinics, Iowa City, IA, USA

    Andrew G. Lee

Authors
  1. Samantha Chao
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  2. Sumayya J. Almarzouqi
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  3. Michael L. Morgan
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  4. Andrew G. Lee
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Corresponding author

Correspondence to Andrew G. Lee .

Editor information

Editors and Affiliations

  1. Dept of Ophthal & Optometry,AKH, Medical University of Wien Dept of Ophthal & Optometry,AKH, Wien, Austria

    Ursula Schmidt-Erfurth

  2. Department of Ophthalmology, Goethe University of Frankfurt am Main Department of Ophthalmology, Frankfurt am Main, Germany

    Thomas Kohnen

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© 2015 Springer-Verlag Berlin Heidelberg (outside the USA)

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Chao, S., Almarzouqi, S.J., Morgan, M.L., Lee, A.G. (2015). Optic Tract. In: Schmidt-Erfurth, U., Kohnen, T. (eds) Encyclopedia of Ophthalmology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-35951-4_1219-1

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  • DOI: https://doi.org/10.1007/978-3-642-35951-4_1219-1

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Online ISBN: 978-3-642-35951-4

  • eBook Packages: Springer Reference MedicineReference Module Medicine

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