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Magnetic resonance imaging. Hemianopsia, or hemianopia, is a visual field loss on the left or right side of the vertical midline. It can affect one eye but usually affects both eyes. Homonymous hemianopsia(or homonymous hemianopia) is hemianopic visual field loss on the same side of both eyes. Homonymous hemianopsia occurs because the right ...
Congruous homonymous hemianopia with macular sparing is a feature of occlusion of posterior cerebral artery supplying the anterior part of the visual cortex. [1] Bilateral homonymous hemianopia with macular sparing producing a picture of ring scotoma is seen in bilateral occipital lobe lesions. [1] Pupillary reflex is normal; Optic atrophy does ...
Paris as seen with left homonymous hemianopsia. A homonymous hemianopsia is the loss of half of the visual field on the same side in both eyes. The visual images that we see to the right side travel from both eyes to the left side of the brain, while the visual images we see to the left side in each eye travel to the right side of the brain.
Bitemporal hemianopsia. 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. It is usually associated with lesions of the optic chiasm, the area where the optic nerves from the right and left eyes cross near the pituitary gland.
The left optic nerve and the optic tracts. In neuroanatomy, the optic tract (from Latin tractus opticus) is a part of the visual system in the brain. It is a continuation of the optic nerve that relays information from the optic chiasm to the ipsilateral lateral geniculate nucleus (LGN), pretectal nuclei, and superior colliculus. [1] It is ...
Sturge–Weber is an embryonal developmental anomaly resulting from errors in mesodermal and ectodermal development. Unlike other neurocutaneous disorders (phakomatoses), Sturge–Weber occurs sporadically (i.e., does not have a hereditary cause). It is caused by a mosaic, somatic activating mutation occurring in the GNAQ gene. [ 2]
Beyond the physical complications that come with orthorexia, the eating disorder is also associated with mental and emotional challenges, including dealing with shame, guilt, fear, and social ...
Global aphasia is a severe form of nonfluent aphasia, caused by damage to the left side of the brain, that affects [ 1] receptive and expressive language skills (needed for both written and oral language) as well as auditory and visual comprehension. [ 2] Acquired impairments of communicative abilities are present across all language modalities ...