No, seeing random colorful spots with closed eyes is not technically a hallucination. It is a phenomenon known as "phosphene." Phosphenes are subjective visual experiences that occur without any external visual stimulus. They can be perceived as flashes of light, colorful spots, or patterns and are often seen when someone closes their eyes tightly or rubs them.
Phosphenes are caused by the mechanical or electrical stimulation of the cells in the retina or the visual cortex of the brain. When pressure is applied to the eyes, the retina may be mechanically stimulated, leading to the perception of phosphenes. Additionally, changes in the brain's electrical activity can also generate phosphenes, which can happen during altered states of consciousness or when the eyes are closed in complete darkness.
Unlike hallucinations, which involve perceiving things that are not there while in a state of wakefulness, phosphenes are a result of the normal functioning of the visual system and do not indicate any underlying psychological condition. They are generally harmless and a common experience.
If someone is experiencing visual disturbances that are persistent, distressing, or accompanied by other concerning symptoms, it is essential to consult a medical professional for a proper evaluation and diagnosis. However, the occasional perception of random colorful spots with closed eyes is considered a normal and benign occurrence.