High myopia does not necessarily lead to retinal detachment, if the patient has simple high myopia, retinal detachment usually does not occur, if the patient has pathologic myopia, retinal detachment may be complicated. Whether or not retinal detachment occurs in high myopia needs to be judged according to the condition. If the patient has simple high myopia, the patient’s myopia is usually more than 600 degrees, and the myopia will tend to be stabilized after the patient reaches adulthood. At this time, patients are prone to visual fatigue, eyeball protrusion, mosquito and other symptoms, but patients are not prone to retinal detachment. If patients develop pathologic myopia, they may have fundus lesions, visual impairment, progressive loss of corrected visual acuity, changes in visual field, and a sense of occlusion of vision. In addition, patients with pathologic myopia have longer eye axes, which can cause the retina to be stretched and thinned, putting them at increased risk for retinal detachment. Patients with high myopia are advised to seek regular medical checkups and early intervention when retinal detachment occurs. Avoid strenuous exercise and eye rubbing in daily life.