After years of good vision after laser treatment for myopia, myopia has appeared in the last two years. This is not a rebound (rebound is usually a reaction to the healing of internal injuries two years after surgery that causes myopia to occur again), but a reappearance of myopia. In recent years, the widespread use of cell phones, tablet computers, computers, etc., in the thirty to forty years of age people first appear myopia is also common. So you should pay attention to less eye use and rest. Also be sure to visit a hospital to rule out other eye diseases such as cataract, glaucoma and cone cornea. Early examination of these diseases without detailed examination may only reveal myopia deepening.