As long as other physical conditions are met and both eyes have not undergone any surgery, the distance vision of any naked eye shall not be less than 0. 1 (diopter shall not exceed -4.50D_+3.00D). No color blindness, color weakness, night blindness, strabismus, glaucoma or high intraocular pressure. There are no tattoos, no skin diseases that can't be cured for a long time, and mild myopia can also be applied for.