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  2. Visual release hallucinations - Wikipedia

    en.wikipedia.org/wiki/Visual_release_hallucinations

    Diagnostic method. Psychosis, delirium, or dementia [1] Visual release hallucinations, also known as Charles Bonnet syndrome or CBS, are a type of psychophysical visual disturbance in which a person with partial or severe blindness experiences visual hallucinations. First described by Charles Bonnet in 1760, [2][3] the term Charles Bonnet ...

  3. Central serous chorioretinopathy - Wikipedia

    en.wikipedia.org/wiki/Central_serous_chorio...

    Central serous chorioretinopathy (CSC or CSCR), also known as central serous retinopathy (CSR), is an eye disease that causes visual impairment, often temporary, usually in one eye. [ 1 ][ 2 ] When the disorder is active it is characterized by leakage of fluid under the retina that has a propensity to accumulate under the central macula.

  4. Visual snow syndrome - Wikipedia

    en.wikipedia.org/wiki/Visual_snow_syndrome

    Uncommon (understudied) Visual snow syndrome (VSS) is an uncommon neurological condition in which the primary symptom is that affected individuals see persistent flickering white, black, transparent, or colored dots across the whole visual field. [7][4] Other common symptoms are palinopsia, enhanced entoptic phenomena, photophobia, and tension ...

  5. Scintillating scotoma - Wikipedia

    en.wikipedia.org/wiki/Scintillating_scotoma

    Artist's depiction of a scintillating scotoma, exhibiting a flashing visual pattern similar to dazzle camouflage used during WWI. Scintillating scotoma is a common visual aura that was first described by 19th-century physician Hubert Airy (1838–1903). Originating from the brain, it may precede a migraine headache, but can also occur ...

  6. Retinitis pigmentosa - Wikipedia

    en.wikipedia.org/wiki/Retinitis_pigmentosa

    Frequency. 1 in 4,000 people [ 1 ] Retinitis pigmentosa (RP) is a genetic disorder of the eyes that causes loss of vision. [ 1 ] Symptoms include trouble seeing at night and decreasing peripheral vision (side and upper or lower visual field). [ 1 ] As peripheral vision worsens, people may experience " tunnel vision ". [ 1 ]

  7. Stargardt disease - Wikipedia

    en.wikipedia.org/wiki/Stargardt_disease

    Genetic. Diagnostic method. Slit lamp. Treatment. None. Stargardt disease is the most common inherited single-gene retinal disease. [1] In terms of the first description of the disease, [2] it follows an autosomal recessive inheritance pattern, which has been later linked to bi-allelic ABCA4 gene variants (STGD1).

  8. Spaceflight associated neuro-ocular syndrome - Wikipedia

    en.wikipedia.org/wiki/Spaceflight_Associated...

    The change continued for the remainder of the mission without noticeable improvement or progression. He did not complain of transient visual obscurations, headaches, diplopia, pulsatile tinnitus or visual changes during eye movement. In the months since landing, he has noticed a gradual, but incomplete, improvement in vision. [5]

  9. Hallucination - Wikipedia

    en.wikipedia.org/wiki/Hallucination

    In many cases, tinnitus is an elementary auditory hallucination. [19] However, some people who experience certain types of tinnitus, especially pulsatile tinnitus, are actually hearing the blood rushing through vessels near the ear. Because the auditory stimulus is present in this situation, it does not qualify it as a hallucination. [21]

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