Näköheron

Näköheron is a term used in Finnish to describe a type of visual hallucination or illusion. It specifically refers to seeing things that are not present, often in the peripheral vision. These visions can range from simple shapes and lights to more complex figures or scenes. The term is not a clinical diagnosis but rather a descriptive one for a perceptual experience.

Such experiences can occur for various reasons. They might be benign, such as when tired or in dim lighting, where the brain misinterprets visual stimuli. In some cases, näköheron can be associated with medical conditions, including neurological disorders like epilepsy or migraines, or psychiatric conditions such as schizophrenia. Eye conditions or even certain medications can also sometimes lead to these visual disturbances.

It is important to differentiate näköheron from simple visual distortions or illusions. While an illusion might be a misinterpretation of an existing object (like seeing a face in a cloud), näköheron typically involves perceiving something entirely absent. If someone experiences persistent or disturbing näköheron, it is advisable to seek medical attention to rule out any underlying health issues. The experience itself is subjective and can vary greatly in intensity and content from person to person.