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Retrochiasmal Disorders

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Encyclopedia of Ophthalmology

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Synonyms

Lateral geniculate lesion; Occipital lobe lesion; Optic tract lesion; Parietal radiations lesion; Temporal radiations lesion

Definition

The retrochiasmal pathway begins posterior to the optic chiasm with the optic tracts then travels to the lateral geniculate nuclei, the temporal lobe optic radiations (i.e., Meyer’s loop), the parietal lobe optic radiations, and ends in the occipital cortex. At the optic chiasm, fibers from the nasal retina cross over to the contralateral side, while temporal fibers remain on the ipsilateral side creating visual field defects that are on the same side (i.e., homonymous) and respect the vertical meridian (hemianopic). As the optic fibers course posteriorly along the visual pathway, they become more organized so that fibers from a similar origination of the retina run in closer and closer proximity to one another. In general, the further posterior the lesion (e.g., occipital) along the retrochiasmatic pathway the more congruous (the same size,...

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Further Reading

  • Burde RM, Savino PJ, Trobe JD (2002) Clinical decisions in neuro-ophthalmology, 3rd edn. CV Mosby, St. Louis, pp 83–93

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  • Kedar S, Zhang X, Lynn MJ et al (2007) Congruency in homonymous hemianopia. Am J Ophthalmol 143(5):772–780

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  • Luco C, Hoppe A, Scheweitzer M et al (1992) Visual field defects in vascular lesions of the lateral geniculate body. J Neurol Neurosurg Psychiatry 55(1):12–15

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  • Newman SA, Miller NR (1983) Optic tract syndrome. Neuro-ophthalmologic considerations. Arch Ophthalmol 101(8):1241–1250

    Article  CAS  PubMed  Google Scholar 

  • Skuta GL, Cantor LB, Weiss JS (2009) Basic and clinical science course: neuro-ophthalmology. American Academy of Ophthalmology, pp 165–172

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Author information

Authors and Affiliations

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

    Nagham Al-Zubidi & Andrew G. Lee

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

    Nagham Al-Zubidi & Andrew G. Lee

  3. Department of Ophthalmology, The University of Texas Medical School, Houston, TX, USA

    Kim Binh T. Mai & 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

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

    Andrew G. Lee

Authors
  1. Nagham Al-Zubidi
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  2. Kim Binh T. Mai
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  3. 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

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Al-Zubidi, N., Mai, K.B.T., Lee, A.G. (2015). Retrochiasmal Disorders. In: Schmidt-Erfurth, U., Kohnen, T. (eds) Encyclopedia of Ophthalmology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-35951-4_523-1

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  • DOI: https://doi.org/10.1007/978-3-642-35951-4_523-1

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Online ISBN: 978-3-642-35951-4

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