Homonymous Sectoranopia: Asymptomatic Presentation of a Lateral Geniculate Nucleus Lesion

Neuroophthalmology. 2015 Nov 11;39(6):289-294. doi: 10.3109/01658107.2015.1079221. eCollection 2015 Dec.


This is a rare presentation of brain tumour in the region of the lateral geniculate nucleus (LGN) presenting as a homonymous horizontal sectoranopia (HHS). The case highlights that subtle field defects can be asymptomatic and only detected by formal perimetry. Although homonymous sectoranopia is a rare form of visual field defect, it should be recognised as a potential manifestation of potentially significant intracranial pathology.

Keywords: Homonymous horizontal sectoranopia; glioma; lateral choroidal artery; lateral geniculate nucleus.

Publication types

  • Case Reports