Myopia 300 degrees does not go back to less than 100 degrees because 300 degrees of myopia usually belongs to true myopia, and cannot be fully recovered, but only through suitable correction to bring the vision to a state of less than 100 degrees, such as daily care, wearing glasses and surgical treatment. Generally speaking, myopia of 300 degrees is mainly caused by the lengthening of the eye axis. At this time, the structure of the eye has already changed and cannot be restored, so we can only provide patients with a better vision correction through the following methods. 1. Daily care: In normal times, you can do more eye exercises, and properly use a towel to apply hot compresses on the eyes before going to bed to relax the muscles around the eyes and relieve eye fatigue. 2. Wear glasses: Wear corrective glasses of the right prescription under the doctor’s guidance, and pay attention to eye rest and minimize the use of cell phones, computers and other electronic products. 3. Surgical correction: You can also correct your vision through surgical treatment, including full femtosecond laser surgery. This method is more suitable for people aged 18 to 50, but before the formal surgery, the patient should have a detailed physical examination. For myopia of 300 degrees, pay attention to eye hygiene in daily life and have your vision checked regularly.