Welcome to the Visual Snow Simulator
The simulator is primarily designed for individuals who suffer from Visual Snow (VS). The underlying pathophysiology of VS remains largely unknown, and current diagnoses still rely on verbal reports1. To further investigate the VS condition, more quantitative measurements are needed. This is where the simulator comes into play, allowing for the quantification, as truthfully as possible, of certain characteristics of VS.
Visual snow (VS) and Visual snow syndrome (VSS)
Visual snow (VS) is a neurological condition characterized by the continuous perception of innumerable flickering dots throughout the entire visual field2. VS is an integral part of Visual Snow Syndrome (VSS), which includes, in addition to VS, at least two of the following four symptoms3:
- Palinopsia (afterimages or trailing),
- Enhanced entoptic phenomena (e.g., floaters, spontaneous photopsia),
- Photophobia (i.e., sensitivity to light), and
- Nyctalopia (i.e., night blindness).
The majority of VS patients also experience VSS4.
Instructions
Because this simulator is used differently than others, it is crucial to understand some basics. Therefore, please read the following instructions before using the simulator.
