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Bitemporal hemianopsia is the medical description of a type of partial blindness where vision is missing in the outer half of both the right and left visual field.
Bitemporal hemianopsia (or bitemporal hemianopia) describes the ocular defect that leads to impaired peripheral vision in the outer temporal halves of the visual field of each eye.
Homonymous hemianopsia is the loss of half of vision on the same side of the visual field. It is caused by a brain injury located post-chiasmal on the optic tract closest to the brain. If the brain injury were on the left side, half the vision in the right eye would be lost.
The bitemporal hemianopia field defect is the classic presentation of a chiasmal lesion. This presents with loss of both temporal fields and is due to compression of the bilateral decussating nasal fibers at the chiasm, since the nasal fibers correspond with the temporal visual fields.
The types of heteronymous hemianopia include: Bitemporal hemianopia is vision loss in the outer part of the visual field in each eye. Binasal hemianopia is vision loss in the inner part of the visual field in each eye.
Bitemporal hemianopia, also known as bitemporal heteronymous hemianopia, is a visual field defect that affects both eyes, resulting in the loss of vision in the outer (temporal) halves of the visual field.
With hemianopsia, you can see only part of the visual field for each eye. Hemianopsia is classified by the part of your visual field that’s missing: bitemporal: outer half of each visual field