The ability to see a colorful halo of light when you close your eyes can be caused by a variety of reasons, such as uveitis, posterior vitreous detachment, and migraine headaches. The retina inside the eye is the key structure that senses light stimuli and converts them into bioelectrical signals that are transmitted to the visual center of the brain to cause vision. Lesions of the retina, optic nerve and central nervous system may cause the symptom of being able to close the eyes and see a colorful halo. For example, in patients with uveitis, the inflammatory stimulus will spread to the retina, affecting retinal function; in patients with vitreous detachment, the vitreous body will pull and stimulate the retina, which will also form the above symptoms; and in patients with migraines, the visual center of the brain may be affected, resulting in the above symptoms, which is known as the visual aura of migraines. At present, this symptom alone can not accurately determine the specific cause, we need to go to the ophthalmology department of the hospital in a timely manner, through the examination to confirm the diagnosis.