Visual phenomenon refers to a perceptual experience that occurs due to the inability of rods and cones to respond properly, usually caused by over-stimulation or adaptation.
Related terms
Sensory Adaptation: It is when our sensory receptors become less responsive to constant stimulation over time.
Afterimage: An image that continues to appear in one's vision after the original stimulus has been removed.
Retinal Fatigue: A temporary loss of sensitivity in the retina due to prolonged exposure to a specific stimulus.