Hyperopia in children is usually caused by congenital developmental abnormalities, and in rare cases, it is caused by corneal scarring due to keratitis or eye trauma. When there is a congenital developmental abnormality that causes the eye axis to be too short or the curvature of the cornea to be too flat, it will result in the light rays being refracted by the refractive system of the eye and converging to form a focal point at the back of the retina, thus forming hyperopia. When the cornea is inflamed or traumatized, scar tissue proliferation may change the curvature of the cornea, resulting in an abnormal refractive state of the cornea, which may also lead to hyperopia. Patients should go to the ophthalmology department of the hospital in time, and the doctor will diagnose the specific cause through detailed examination, and then only take targeted treatment to eliminate the symptoms.