Illusory palinopsia: Difference between revisions
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{{SI}} | |||
{{Infobox medical condition | |||
| name = Illusory palinopsia | |||
| image = [[File:Palinopsia_simulation.gif|alt=Simulation of palinopsia|upright=1.2]] | |||
| caption = Simulation of palinopsia | |||
| field = [[Neurology]] | |||
| symptoms = [[Visual disturbance]]s, [[afterimage]]s, [[trailing]] | |||
| onset = Sudden or gradual | |||
| duration = Variable | |||
| causes = [[Migraine]], [[hallucinogen]] use, [[head trauma]], [[seizure]]s | |||
| risks = [[Visual snow]], [[migraine]] | |||
| diagnosis = [[Clinical diagnosis]] | |||
| differential = [[Hallucinatory palinopsia]], [[visual snow]], [[epilepsy]] | |||
| treatment = [[Medication]], [[lifestyle modification]] | |||
| prognosis = Variable | |||
| frequency = Rare | |||
}} | |||
{{Short description|A visual disturbance characterized by the persistence of an image after the stimulus has been removed.}} | {{Short description|A visual disturbance characterized by the persistence of an image after the stimulus has been removed.}} | ||
'''Illusory palinopsia''' is a type of [[visual disturbance]] where an individual perceives a persistent image after the original visual stimulus has been removed. This phenomenon is distinct from [[hallucinations]] as it involves the persistence of a real image rather than the creation of a new one. | '''Illusory palinopsia''' is a type of [[visual disturbance]] where an individual perceives a persistent image after the original visual stimulus has been removed. This phenomenon is distinct from [[hallucinations]] as it involves the persistence of a real image rather than the creation of a new one. | ||
==Characteristics== | ==Characteristics== | ||
Illusory palinopsia is characterized by the persistence of images, often described as "afterimages," that linger in the visual field. These afterimages can vary in duration and intensity, and they may appear as static or moving images. The phenomenon is often more pronounced in conditions of low light or when the individual is fatigued. | Illusory palinopsia is characterized by the persistence of images, often described as "afterimages," that linger in the visual field. These afterimages can vary in duration and intensity, and they may appear as static or moving images. The phenomenon is often more pronounced in conditions of low light or when the individual is fatigued. | ||
==Causes== | ==Causes== | ||
Illusory palinopsia can be caused by a variety of factors, including: | Illusory palinopsia can be caused by a variety of factors, including: | ||
* [[Neurological disorders]]: Conditions such as [[migraine]], [[epilepsy]], and [[stroke]] can lead to palinopsia. | * [[Neurological disorders]]: Conditions such as [[migraine]], [[epilepsy]], and [[stroke]] can lead to palinopsia. | ||
* [[Medication side effects]]: Certain medications, particularly those affecting the central nervous system, can induce palinopsia. | * [[Medication side effects]]: Certain medications, particularly those affecting the central nervous system, can induce palinopsia. | ||
* [[Trauma]]: Head injuries or trauma to the visual cortex can result in persistent afterimages. | * [[Trauma]]: Head injuries or trauma to the visual cortex can result in persistent afterimages. | ||
==Diagnosis== | ==Diagnosis== | ||
The diagnosis of illusory palinopsia typically involves a thorough [[medical history]] and [[neurological examination]]. [[Imaging studies]] such as [[MRI]] or [[CT scans]] may be used to identify any underlying neurological conditions. It is important to differentiate illusory palinopsia from other visual disturbances such as [[visual snow]] or [[Charles Bonnet syndrome]]. | The diagnosis of illusory palinopsia typically involves a thorough [[medical history]] and [[neurological examination]]. [[Imaging studies]] such as [[MRI]] or [[CT scans]] may be used to identify any underlying neurological conditions. It is important to differentiate illusory palinopsia from other visual disturbances such as [[visual snow]] or [[Charles Bonnet syndrome]]. | ||
==Management== | ==Management== | ||
Management of illusory palinopsia focuses on addressing the underlying cause. This may involve: | Management of illusory palinopsia focuses on addressing the underlying cause. This may involve: | ||
* Adjusting or discontinuing medications that may be contributing to the symptoms. | * Adjusting or discontinuing medications that may be contributing to the symptoms. | ||
* Treating any underlying neurological conditions. | * Treating any underlying neurological conditions. | ||
* Providing supportive therapies such as [[vision therapy]] or [[cognitive behavioral therapy]] to help patients cope with the symptoms. | * Providing supportive therapies such as [[vision therapy]] or [[cognitive behavioral therapy]] to help patients cope with the symptoms. | ||
==Prognosis== | ==Prognosis== | ||
The prognosis for individuals with illusory palinopsia varies depending on the underlying cause. In cases where the condition is related to medication or a reversible neurological condition, symptoms may improve with appropriate treatment. However, in cases related to permanent neurological damage, symptoms may persist. | The prognosis for individuals with illusory palinopsia varies depending on the underlying cause. In cases where the condition is related to medication or a reversible neurological condition, symptoms may improve with appropriate treatment. However, in cases related to permanent neurological damage, symptoms may persist. | ||
==See also== | |||
== | |||
* [[Visual perception]] | * [[Visual perception]] | ||
* [[Afterimage]] | * [[Afterimage]] | ||
* [[Visual cortex]] | * [[Visual cortex]] | ||
* [[Neurology]] | * [[Neurology]] | ||
[[Category:Visual disturbances]] | [[Category:Visual disturbances]] | ||
[[Category:Neurology]] | [[Category:Neurology]] | ||
Latest revision as of 01:08, 8 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
Philadelphia medical weight loss and Philadelphia sleep clinics
| Illusory palinopsia | |
|---|---|
| |
| Synonyms | N/A |
| Pronounce | N/A |
| Specialty | N/A |
| Symptoms | Visual disturbances, afterimages, trailing |
| Complications | N/A |
| Onset | Sudden or gradual |
| Duration | Variable |
| Types | N/A |
| Causes | Migraine, hallucinogen use, head trauma, seizures |
| Risks | Visual snow, migraine |
| Diagnosis | Clinical diagnosis |
| Differential diagnosis | Hallucinatory palinopsia, visual snow, epilepsy |
| Prevention | N/A |
| Treatment | Medication, lifestyle modification |
| Medication | N/A |
| Prognosis | Variable |
| Frequency | Rare |
| Deaths | N/A |
A visual disturbance characterized by the persistence of an image after the stimulus has been removed.
Illusory palinopsia is a type of visual disturbance where an individual perceives a persistent image after the original visual stimulus has been removed. This phenomenon is distinct from hallucinations as it involves the persistence of a real image rather than the creation of a new one.
Characteristics[edit]
Illusory palinopsia is characterized by the persistence of images, often described as "afterimages," that linger in the visual field. These afterimages can vary in duration and intensity, and they may appear as static or moving images. The phenomenon is often more pronounced in conditions of low light or when the individual is fatigued.
Causes[edit]
Illusory palinopsia can be caused by a variety of factors, including:
- Neurological disorders: Conditions such as migraine, epilepsy, and stroke can lead to palinopsia.
- Medication side effects: Certain medications, particularly those affecting the central nervous system, can induce palinopsia.
- Trauma: Head injuries or trauma to the visual cortex can result in persistent afterimages.
Diagnosis[edit]
The diagnosis of illusory palinopsia typically involves a thorough medical history and neurological examination. Imaging studies such as MRI or CT scans may be used to identify any underlying neurological conditions. It is important to differentiate illusory palinopsia from other visual disturbances such as visual snow or Charles Bonnet syndrome.
Management[edit]
Management of illusory palinopsia focuses on addressing the underlying cause. This may involve:
- Adjusting or discontinuing medications that may be contributing to the symptoms.
- Treating any underlying neurological conditions.
- Providing supportive therapies such as vision therapy or cognitive behavioral therapy to help patients cope with the symptoms.
Prognosis[edit]
The prognosis for individuals with illusory palinopsia varies depending on the underlying cause. In cases where the condition is related to medication or a reversible neurological condition, symptoms may improve with appropriate treatment. However, in cases related to permanent neurological damage, symptoms may persist.
