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2. Closed-eye hallucination - Wikipedia

   en.wikipedia.org/wiki/Closed-eye_hallucination

   This can be seen when the eyes are closed and looking at the back of the eyelids. In a bright room, a dark red can be seen, owing to a small amount of light penetrating the eyelids and taking on the color of the blood it has passed through. In a dark room, blackness can be seen or the object can be more colourful.

3. Entoptic phenomenon - Wikipedia

   en.wikipedia.org/wiki/Entoptic_phenomenon

   Entoptic phenomena (from Ancient Greek ἐντός (entós) 'within', and ὀπτικός (optikós) 'visual') are visual effects whose source is within the human eye itself. (Occasionally, these are called entopic phenomena, which is probably a typographical mistake.) In Helmholtz 's words: "Under suitable conditions light falling on the eye ...

4. 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 ...

5. Phosphene - Wikipedia

   en.wikipedia.org/wiki/Phosphene

   An artist's representation of how some people may see phosphenes by retinal stimulation. A phosphene is the phenomenon of seeing light without light entering the eye. The word phosphene comes from the Greek words phos (light) and phainein (to show). Phosphenes that are induced by movement or sound may be associated with optic neuritis.

6. A Young Girl Reading - Wikipedia

   en.wikipedia.org/wiki/A_Young_Girl_Reading

   Young Girl Reading, or The Reader ( French: La Liseuse ), is an 18th-century oil painting by Jean-Honoré Fragonard. It depicts an unidentified girl seated in profile, wearing a lemon yellow dress with white ruff collar and cuffs and purple ribbons, and reading from a small book held in her right hand. The painting is in the National Gallery of ...

7. Visual snow syndrome - Wikipedia

   en.wikipedia.org/wiki/Visual_snow_syndrome

   Visual Snow can appear at any time, but it commonly appears at birth, late teenage years, and early adulthood. 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.

8. Aura (symptom) - Wikipedia

   en.wikipedia.org/wiki/Aura_(symptom)

   Aura (symptom) An aura is a perceptual disturbance experienced by some with epilepsy or migraine. An epileptic aura is actually a minor seizure. [1] Epileptic and migraine auras are due to the involvement of specific areas of the brain, which are those that determine the symptoms of the aura. Therefore, if the visual area is affected, the aura ...

9. If You See a Purple Porch Light, This Is What It Means - AOL

   www.aol.com/lifestyle/see-purple-porch-light...

   It’s not the only color for a cause. Purple probably won’t be the only porch light color you’ll see. People use red porch lights to highlight women’s heart health. And blue porch lights ...