Three-year-old babies with high hyperopia often show two aspects of visual fatigue and visual impairment. 1. Visual fatigue: When babies with high hyperopia are over-adjusted, visual fatigue is easy to occur, especially after reading or watching electronic products for a long time, eye soreness, orbital pain and other uncomfortable symptoms may occur. 2. Visual impairment: Children with high farsightedness may experience vision loss, especially when looking at near objects. In addition, children may also suffer from dizziness and headache. It is recommended that children with high hyperopia should consult a doctor in time to evaluate their condition and choose the appropriate treatment under the doctor’s guidance.