Hemianopsia: Difference between revisions
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{{SI}} | |||
{{Infobox medical condition | |||
| name = Hemianopsia | |||
| image = [[File:fullvf.png]] | |||
| caption = Visual field with hemianopsia | |||
| synonyms = Hemianopia | |||
| pronunciation = | |||
| specialty = [[Neurology]], [[Ophthalmology]] | |||
| symptoms = Loss of vision in half of the visual field | |||
| causes = [[Stroke]], [[brain tumor]], [[traumatic brain injury]], [[multiple sclerosis]] | |||
| diagnosis = [[Visual field test]], [[neuroimaging]] | |||
| treatment = [[Vision therapy]], [[prism glasses]], [[occupational therapy]] | |||
| frequency = Common in patients with [[stroke]] | |||
}} | |||
[[File:Paris as seen with left homonymous hemianopsia.png|Paris as seen with left homonymous hemianopsia|thumb|left]] | |||
[[File:binasalvf.png|Binasal Visual Field|thumb]] | |||
[[File:bitempvf.png|Bitemporal Visual Field|thumb|left]] | |||
[[File:Right-superior-quadrantanopia.svg|Right Superior Quadrantanopia|thumb]] | |||
'''Hemianopsia''' is a medical condition characterized by the loss of half of the visual field in both eyes. It is often caused by [[stroke]], [[brain tumor]], [[trauma]], or [[neurological disorder]]s. | '''Hemianopsia''' is a medical condition characterized by the loss of half of the visual field in both eyes. It is often caused by [[stroke]], [[brain tumor]], [[trauma]], or [[neurological disorder]]s. | ||
== Causes == | == Causes == | ||
Hemianopsia can be caused by a variety of conditions, including: | Hemianopsia can be caused by a variety of conditions, including: | ||
* [[Stroke]]: This is the most common cause of hemianopsia. A stroke occurs when blood flow to a part of the brain is cut off, causing brain cells to die. This can result in a loss of vision in one half of the visual field. | * [[Stroke]]: This is the most common cause of hemianopsia. A stroke occurs when blood flow to a part of the brain is cut off, causing brain cells to die. This can result in a loss of vision in one half of the visual field. | ||
* [[Brain tumor]]: A tumor in the brain can press on the optic nerve or other parts of the brain involved in vision, causing hemianopsia. | * [[Brain tumor]]: A tumor in the brain can press on the optic nerve or other parts of the brain involved in vision, causing hemianopsia. | ||
* [[Trauma]]: Injury to the brain can also cause hemianopsia. This can occur as a result of a car accident, fall, or other type of injury. | * [[Trauma]]: Injury to the brain can also cause hemianopsia. This can occur as a result of a car accident, fall, or other type of injury. | ||
* [[Neurological disorder]]s: Certain neurological disorders, such as [[multiple sclerosis]], can also cause hemianopsia. | * [[Neurological disorder]]s: Certain neurological disorders, such as [[multiple sclerosis]], can also cause hemianopsia. | ||
== Symptoms == | == Symptoms == | ||
The main symptom of hemianopsia is a loss of vision in one half of the visual field in both eyes. This can make it difficult to read, drive, or perform other tasks that require a full field of vision. Other symptoms can include: | The main symptom of hemianopsia is a loss of vision in one half of the visual field in both eyes. This can make it difficult to read, drive, or perform other tasks that require a full field of vision. Other symptoms can include: | ||
* Difficulty seeing objects on one side | * Difficulty seeing objects on one side | ||
* Difficulty reading | * Difficulty reading | ||
* Difficulty navigating through space | * Difficulty navigating through space | ||
== Treatment == | == Treatment == | ||
Treatment for hemianopsia depends on the underlying cause. If the condition is caused by a stroke, treatment may involve medications to prevent further strokes, physical therapy to help improve mobility, and occupational therapy to help improve daily living skills. If the condition is caused by a brain tumor, treatment may involve surgery to remove the tumor, radiation therapy, or chemotherapy. | Treatment for hemianopsia depends on the underlying cause. If the condition is caused by a stroke, treatment may involve medications to prevent further strokes, physical therapy to help improve mobility, and occupational therapy to help improve daily living skills. If the condition is caused by a brain tumor, treatment may involve surgery to remove the tumor, radiation therapy, or chemotherapy. | ||
In some cases, vision therapy may be recommended. This involves exercises designed to improve visual skills and may help some people with hemianopsia regain some of their lost vision. | In some cases, vision therapy may be recommended. This involves exercises designed to improve visual skills and may help some people with hemianopsia regain some of their lost vision. | ||
== See also == | == See also == | ||
* [[Visual field]] | * [[Visual field]] | ||
* [[Optic nerve]] | * [[Optic nerve]] | ||
* [[Visual impairment]] | * [[Visual impairment]] | ||
[[Category:Eye disorders]] | [[Category:Eye disorders]] | ||
[[Category:Neurological disorders]] | [[Category:Neurological disorders]] | ||
[[Category:Stroke]] | [[Category:Stroke]] | ||
[[Category:Brain tumor]] | [[Category:Brain tumor]] | ||
{{stub}} | {{stub}} | ||
Latest revision as of 10:09, 13 April 2025
Editor-In-Chief: Prab R Tumpati, MD
Obesity, Sleep & Internal medicine
Founder, WikiMD Wellnesspedia &
W8MD's medical weight loss NYC, sleep center NYC
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| Hemianopsia | |
|---|---|
| |
| Synonyms | Hemianopia |
| Pronounce | N/A |
| Specialty | Neurology, Ophthalmology |
| Symptoms | Loss of vision in half of the visual field |
| Complications | N/A |
| Onset | N/A |
| Duration | N/A |
| Types | N/A |
| Causes | Stroke, brain tumor, traumatic brain injury, multiple sclerosis |
| Risks | N/A |
| Diagnosis | Visual field test, neuroimaging |
| Differential diagnosis | N/A |
| Prevention | N/A |
| Treatment | Vision therapy, prism glasses, occupational therapy |
| Medication | N/A |
| Prognosis | N/A |
| Frequency | Common in patients with stroke |
| Deaths | N/A |
Hemianopsia is a medical condition characterized by the loss of half of the visual field in both eyes. It is often caused by stroke, brain tumor, trauma, or neurological disorders.
Causes[edit]
Hemianopsia can be caused by a variety of conditions, including:
- Stroke: This is the most common cause of hemianopsia. A stroke occurs when blood flow to a part of the brain is cut off, causing brain cells to die. This can result in a loss of vision in one half of the visual field.
- Brain tumor: A tumor in the brain can press on the optic nerve or other parts of the brain involved in vision, causing hemianopsia.
- Trauma: Injury to the brain can also cause hemianopsia. This can occur as a result of a car accident, fall, or other type of injury.
- Neurological disorders: Certain neurological disorders, such as multiple sclerosis, can also cause hemianopsia.
Symptoms[edit]
The main symptom of hemianopsia is a loss of vision in one half of the visual field in both eyes. This can make it difficult to read, drive, or perform other tasks that require a full field of vision. Other symptoms can include:
- Difficulty seeing objects on one side
- Difficulty reading
- Difficulty navigating through space
Treatment[edit]
Treatment for hemianopsia depends on the underlying cause. If the condition is caused by a stroke, treatment may involve medications to prevent further strokes, physical therapy to help improve mobility, and occupational therapy to help improve daily living skills. If the condition is caused by a brain tumor, treatment may involve surgery to remove the tumor, radiation therapy, or chemotherapy. In some cases, vision therapy may be recommended. This involves exercises designed to improve visual skills and may help some people with hemianopsia regain some of their lost vision.
