Black dots on the eyes are usually pigmented nevi or hyperpigmentation, which is a physiological phenomenon that usually occurs since childhood and rarely changes. However, if the black spot appears suddenly within a short period of time, or if the nature of the black spot changes, such as the scope becomes larger, darker, or there are symptoms of rupture or bleeding, it may be a symptom of malignant transformation, which should be taken seriously and should be surgically removed as soon as possible. Radiation therapy or chemotherapy.