Whether you choose to have excimer laser surgery —- is up to you: 1, whether you hate wearing frames; 2, whether you have a clear understanding of the risks of excimer laser surgery; 3, whether you are surrounded by good ophthalmology, good ophthalmologists, and good excimer equipment; 4, whether you understand the differences between traditional excimer surgery (LASIK) and femtosecond excimer laser surgery; 5, whether you regularly participate in intense sports (basketball, football, diving); 2, whether you can have excimer laser surgery —- Whether you often participate in intense sports (basketball, soccer, diving); whether you can do excimer laser surgery —- ophthalmologists say: 1, age 18 years old or above, 55 years old or below; 2, the last two years of refractive stability, the development of its degree is not greater than 50 degrees per year; 3, corrected refractive range (myopia 100-1400 degrees; farsightedness 100-600 degrees; astigmatism not more than 600 degrees); 4, the difference between the refractive error of both eyes; 5, the thickness of the cornea is appropriate; 6, eye examination without inflammation; 7, no keloid (refers to the skin trauma left after the protrusion of large scars); 8, no diabetes, autoimmune diseases, etc. (affecting the healing of corneal incision); 9, exclude cone cornea, glaucoma rabbit eye, dry eye, corneal endothelial degeneration, amblyopia with very poor corrected visual acuity, ophthalmic diseases such as fundus hemorrhage and retinal detachment.