The recurrence of vision loss or the appearance of myopia after myopia surgery, a condition called refractive regression, is a rare complication after refractive surgery. There are usually two reasons for this condition: First, the healing ability of the cornea is too strong, so this condition occurs. Secondly, the failure to pay attention to reasonable eye habits after surgery, such as frequent close eye use, computer and cell phone use, may also cause myopia to reappear. After the reappearance of myopia, you should first go to the hospital for an optometric examination to clarify your current visual acuity and the degree of myopia, and if it is within a short period of time after the surgery, you can observe conservatively for a period of time. However, if the eyes are still relatively large after a long time, it is recommended to wear glasses or have surgery again as soon as possible.