The hyperopia reserve of a four-year-old child is around 175-200 degrees, if the child’s hyperopia reaches 375 degrees, it is a pathological hyperopia, which can affect the child’s vision, and the child can be corrected by wearing suitable glasses to improve vision, and also need to develop good eye habits in daily life. Four-year-old children with hyperopia of 375 degrees need to pay attention to, farsightedness will lead to children’s vision loss, observation of things will have obvious blurred feeling, may also cause dizziness, eye soreness and other uncomfortable symptoms. Children need to timely hospital optometry, clear refractive state, under the guidance of the doctor to choose the appropriate glasses to correct hyperopia, improve vision. Children with hyperopia also need to pay attention to eye habits, avoid excessive eye strain, reduce the use of electronic products, avoid rubbing the eyes, and use the eyes in a well-lit environment. It is recommended that children with hyperopia should consult a doctor in time to assess their condition and follow the doctor’s instructions for treatment.