What Is Visual Snow Syndrome?

Visual snow syndrome (VSS) is a neurological condition characterized by the constant presence of tiny, flickering white or black dots in the person’s vision. These “snowflakes” are typically seen in both eyes and have a grainy or static-like appearance.

While the exact cause of VSS is unknown, some researchers believe it is related to an overactivity in the brain's visual cortex. This overactivity can lead to a disturbance in the normal processing of visual information, causing the appearance of the "snow." 

VSS can also be caused by other factors such as migraines, eye strain, drug use, and certain medical conditions.

Although the symptoms of visual snow syndrome can be distressing and may occasionally interfere with daily activities, it is generally considered a benign condition and rarely causes any significant vision loss.

There are currently no specific treatments for VSS. However, some individuals find that their symptoms can be managed by avoiding certain triggers, such as bright lights or flickering screens.