Cerebral achromatopsia
Cerebral Achromatopsia
Cerebral achromatopsia (pronunciation: /sɪˈriːbrəl ækrəməˈtɒpsiə/), also known as cortical achromatopsia, is a rare neurological disorder characterized by a significant loss of color vision caused by damage to the cerebral cortex.
Etymology
The term "cerebral achromatopsia" is derived from the Greek words "kerebro" (brain), "a" (without), "chroma" (color), and "opsis" (vision), literally translating to "without color vision in the brain".
Symptoms
Individuals with cerebral achromatopsia experience a complete loss of color vision, seeing the world only in shades of gray. This is different from other forms of color blindness, where individuals have difficulty distinguishing between certain colors. Other symptoms may include reduced visual acuity, hemianopsia (loss of half of the visual field), and difficulties with fine motor skills.
Causes
Cerebral achromatopsia is typically caused by damage to the V4 area of the visual cortex, often as a result of a stroke or traumatic brain injury. It can also be caused by neurodegenerative diseases such as Alzheimer's disease or Parkinson's disease.
Diagnosis
Diagnosis of cerebral achromatopsia is typically made through a combination of clinical examination, patient history, and neuroimaging techniques such as MRI or CT scan. Color vision tests, such as the Ishihara test, may also be used.
Treatment
There is currently no cure for cerebral achromatopsia. Treatment is typically focused on managing symptoms and may include occupational therapy to help individuals adapt to their loss of color vision.
Related Terms
External links
- Medical encyclopedia article on Cerebral achromatopsia
- Wikipedia's article - Cerebral achromatopsia
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