A 9-year-old child with 400 degrees of myopia needs to develop good eye habits, and can correct his myopia and improve his vision by wearing eyeglasses and other means.
If a 9-year-old child has 400 degrees of myopia, he or she needs to go to the ophthalmology department of the hospital for a dilated optometry examination first to determine the exact degree of myopia. Children should try to avoid playing cell phones and watching TV for a long time, so that their eyes can be relaxed and the spastic ciliary muscles can be loosened to relieve visual fatigue and control the progression of myopia.
Nearsightedness can lead to vision loss, and children can improve their vision by wearing frames to correct their myopia. Children with myopia can also choose to wear corneal reshaping lenses, which not only corrects myopia, but also controls the growth of myopia.
It is recommended that children with myopia seek medical attention to assess their condition and receive treatment under the guidance of a doctor to relieve eye discomfort.