Corrected vision is mainly the visual acuity that can be achieved by wearing glasses to correct refractive errors. Myopia can be caused by genetic factors or poor eye habits. Patients with myopia may experience a decrease in distance vision, and the degree of myopia can be determined through an optometric examination. Patients with myopia can correct their vision by wearing glasses of appropriate prescription, such as frame glasses and corneal contact lenses. Adult patients can also have their vision corrected by refractive surgery, such as Excimer Laser Surgery or Full Femtosecond Laser Surgery, if the refractive error is stable within two years and there are no other contraindications. It is recommended that patients should go to the hospital in time when they experience vision loss and follow the doctor’s instructions for treatment.