The main danger of myopia is that it reduces the patient’s visual acuity and is prone to fundus disorders such as dry retinal tears and retinal degeneration. Myopia is a common disease in ophthalmology, belonging to a type of refractive error, inborn genetic factors and acquired bad eye habits can lead to the occurrence of myopia. Myopia is a common ophthalmic disease that is characterized by refractive error. Both congenital genetic factors and acquired poor eye habits can lead to myopia. At the same time, myopia will also change the anatomical structure of the eye, such as causing the eye axis to lengthen, which will make the peripheral part of the retina prone to weak areas, causing changes such as dry fissures, degeneration areas, and even retinal detachment, which will seriously damage the patient’s eyesight. It is recommended that myopic patients seek medical attention in a timely manner to assess their condition and follow the doctor’s instructions for treatment.