Patients with retinal tears need to be treated even if they have good vision because of the hidden dangers of retinal tears. The condition of patients with retinal tears may progress and retinal detachment may occur, which may lead to uncomfortable symptoms such as dark shadows obscuring the eyes, loss of vision, and even blindness in severe cases. This is because when a retinal tear is formed, liquefied vitreous can enter under the retina through the tear, causing the retina to leave the wall of the eye and fall down, thus forming a retinal detachment. Therefore, after the formation of a retinal detachment, although the patient’s vision is still good, the retinal detachment will eventually occur due to the gradual increase in the size of the retinal detachment caused by a variety of factors. It is recommended that patients with retinal tears seek medical attention to evaluate their condition and follow the doctor’s instructions for treatment.