Children who are nearsighted in one eye and normal in the other need to have their nearsightedness corrected when it affects normal vision. Normal myopia in one eye and nearsightedness in the other will cause imbalance of vision in both eyes, which will easily lead to visual fatigue and further increase of myopia, so it needs to be corrected in time. Children need to go to the ophthalmology department of the hospital for an optometry examination to determine the exact degree of myopia. If the degree of myopia is within 300 degrees, ordinary frame glasses can be worn for correction. If the myopia is more than 300 degrees, there is no way to wear frames to correct, because the lens will play a role in narrowing the object, resulting in difficulties in binocular fusion and double vision, and then you can consider wearing corneal contact lenses to correct.