Starry eyes can be caused by localized impact, upright hypotension, retinal ischemia, and so on. 1. Impact: When the head is impacted, a part of the brain’s control system is traumatized, which in turn leads to damage to the system that controls the eyes, resulting in the problem of starry eyes. 2. Upright hypotension: a sudden change in body posture, such as from sitting or lying to standing, can easily lead to postural hypotension, which leads to transient ischemia of the brain, affecting the visual center, leading to abnormal function of the visual center and the problem of starry eyes. 3. Retinal ischemia: abnormal retinal arteries, such as stenosis or spasm, can easily cause transient ischemia of the retina, resulting in retinal anomalies, which can be felt as starry eyes. When patients have persistent starry eyes, they should go to the hospital in time, under the guidance of the doctor to clarify the cause of the disease and take effective treatment.