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Case Reports
. 2020 Jan 21;13(1):e232486.
doi: 10.1136/bcr-2019-232486.

Binasal hemianopia in two sisters

Sam Scotcher  1 , George Morphis  2 , Peter Good  3
Affiliations
Case Reports

Binasal hemianopia in two sisters

Sam Scotcher et al. BMJ Case Rep. .

Abstract

Binasal hemianopia is a rare visual field defect. A teenage girl presented with blurred vision and persistent headaches following a minor head injury. The ocular examination was normal except for a binasal hemianopia, and subsequent neuroimaging was also unremarkable. Her older sister was found to have the same visual field defect, also with normal neuroimaging. This represents the first reported case of binasal hemianopia found in siblings. Given that no neurological or ocular cause was identified in either sister, this supports the theory of an unknown congenital aetiology.

Keywords: ophthalmology; visual pathway.

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Conflict of interest statement

Competing interests: None declared.

Figures

Figure 1
Figure 1
Optic disc photograph for sister 1.
Figure 2
Figure 2
Automated perimetry for sister 1.
Figure 3
Figure 3
Automated perimetry for sister 2.
Figure 4
Figure 4
Optic disc photograph for sister 2.
See this image and copyright information in PMC

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