Usually, 300 degree myopia cannot be corrected by oneself, at this time, it is already obvious that there is a sense of blurring in observing things, which has seriously affected the normal life, and it is necessary to seek medical treatment for correction in time. In general, 300 degrees myopia belongs to the true myopia, can not be corrected, at this time has appeared to observe things have a sense of haziness, fuzzy, will often appear visual fatigue, eye soreness and other undesirable symptoms, has affected the normal life, you need to consult a doctor in a timely manner to correct the vision, or else myopia continues to rise. When this kind of situation occurs, you need to go to the hospital for dilated optometry, according to the results of the doctor’s guidance to choose the right glasses, after wearing can effectively improve the situation of vision loss, but also can alleviate the adverse symptoms caused by myopia. In addition, according to the doctor’s advice, you can also choose myopia surgery to correct your vision. If you are nearsighted, you need to consult a doctor in time and choose the right correction method according to the doctor’s advice, so as to avoid a significant increase in the number of myopia.