- Caused due to damage of nasal fibers at the optic chiasm
- Results in vision like the following image:

University of Colorado at Boulder

- Bitemporal hemianopsia
- Binasal hemianopsia

Heteronymous Hemianopsia 

Peli, E., & Satgunam, P. N. (2014). Bitemporal hemianopia; its unique binocular complexities and a novel remedy. Ophthalmic and Physiological Optics, 34(2), 233–242. https://doi.org/10.1111/opo.12118 

Bitemporal hemianopia; its unique binocular complexities and a novel remedy

Paris as seen with bitemporal hemianopsia. (2004). Wikimedia Commons. Retrieved January 11, 2022, from https://upload.wikimedia.org/wikipedia/commons/1/15/Bitempvf.png. 

Paris as seen with bitemporal hemianopsia.

Bitemporal Hemianopsia

- Causes of binasal hemianopsia are very sporadic, but can be deduced that it is caused from damage of temporal fibers at optic chiasm
- Very rare; less than 10 instances in literature
- Following image shows how binasal hemianopsia affects vision:

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