Patients with myopia can have poor night vision, although the symptoms are usually not too severe and may only manifest as mild low vision, a condition for which there is no way to treat. However, if the night vision is very low, eye diseases may be present. Patients with high myopia, such as those with more than 1,000 degrees of myopia, may have complications in the fundus, such as atrophic changes in the retinal choroid, which may lead to night blindness; another condition is retinitis pigmentosa, which is a rare congenital genetic disease of the eye that generally The main symptom of this disease is night blindness. Therefore, if the symptom of not being able to see clearly at night is particularly serious, it is important to go to a regular hospital for fundus examination as soon as possible.