BINASAL HEMIANOPIA Meaning and
Definition
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Binasal hemianopia is a medical condition characterized by a specific type of visual field defect. It is a form of hemianopia, which refers to the loss of half of the visual field in both eyes. In the case of binasal hemianopia, the loss of vision occurs in the outer halves of the visual field of both eyes, specifically in the nasal (inner) portions of each eye's visual field.
This condition typically arises from damage to the optic chiasm, which is the point at which the optic nerves from each eye intersect. The optic chiasm is responsible for the crossing over of visual information from the nasal halves of the visual field to the opposite side of the brain. In the case of binasal hemianopia, this crossing over process is disrupted, leading to a loss of vision in the nasal portion of both eyes.
The most common cause of binasal hemianopia is pressure or compression on the optic chiasm, often due to the presence of a tumor or aneurysm in the brain. Other potential causes include head trauma, stroke, or certain genetic conditions.
Symptoms of binasal hemianopia may include difficulty seeing objects on the sides of the visual field, reduced peripheral vision, problems with spatial awareness, and potential reading difficulties. Treatment options depend on the underlying cause of the condition and may involve surgical intervention, medication, or vision rehabilitation techniques.
Common Misspellings for BINASAL HEMIANOPIA
- vinasal hemianopia
- ninasal hemianopia
- hinasal hemianopia
- ginasal hemianopia
- bunasal hemianopia
- bjnasal hemianopia
- bknasal hemianopia
- bonasal hemianopia
- b9nasal hemianopia
- b8nasal hemianopia
- bibasal hemianopia
- bimasal hemianopia
- bijasal hemianopia
- bihasal hemianopia
- binzsal hemianopia
- binssal hemianopia
- binwsal hemianopia
- binqsal hemianopia
- binaaal hemianopia
- binazal hemianopia
Etymology of BINASAL HEMIANOPIA
The term "binasal hemianopia" is composed of two words: "binasal" and "hemianopia".
The word "binasal" comes from the Latin prefix "bi-" meaning "two" or "double", and "nasal" referring to "the nose". In ophthalmology, "binasal" is used to describe something related to both nasal (inner) sides of the visual field.
The word "hemianopia" is derived from Greek. "Hemi-" means "half", and "anopia" means "blindness". "Hemianopia" refers to partial or complete loss of vision in one half of the visual field.
Therefore, "binasal hemianopia" describes a condition where a person experiences visual field loss from both sides of the nose, resulting in a specific pattern of visual impairment.
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