Femtosecond generally refers to femtosecond laser surgery, a surgical method to treat myopia. After a week or so of femtosecond laser surgery and myopia, the first thing to consider is pseudomyopia caused by improper use of the eyes and other reasons. It also does not exclude a few patients in the post-operative relapse, manifesting as true myopia, it is recommended that patients seek medical attention in order to clarify the causes and actively treat: a. Causes: pseudomyopia and true myopia are sometimes not easy to distinguish, it is recommended to go to the ophthalmology department for dilated eye examinations, generally pseudomyopia normal vision after pupil dilatation, while true myopia still exists after pupil dilatation myopia. 1. pseudomyopia: such as not paying attention to eye hygiene, excessive eye use and other bad The first thing you need to do is to take a look at the actual results. The first thing you need to do is to take care of your eyes. The eye care exercise should be done properly to minimize the use of electronic devices and not to use the eyes in darkness; 2. In addition, you can also eat a moderate amount of vegetables, fruits, supplemental vitamins, anthocyanins and other nutrients, can play a certain role in the nutrition of the eye, such as carrots, broccoli, spinach, oranges, kiwi, mangoes and so on.