The child is 8 years old, eye axis 24.35, usually is the manifestation of eye myopia, timely control of the situation may not be too serious; if not actively control, with the increase of myopia, the retina will be thinned and deformed, serious retinal detachment, vision loss, the consequences are serious. Clinical studies have shown that the standard average length of the eye axis of children aged 7 to 8 years is 20.3mm, and the upper average value is 21.5mm. The eye axis of an 8-year-old child is 24.35mm long, which belongs to the excessive length of the eye axis. The long eye axis is usually caused by myopia, if the bad eye habits are corrected in time and the vision is actively corrected, the degree of control, the situation is usually not very serious. If the myopia is not controlled in time, the retina will be thinned, deformed, or even cracked as the myopia continues to deepen and the axial length of the eye continues to increase. If the retina is not detected and treated in time, retinal detachment will occur, which will eventually lead to loss of vision. 8-year-old children with an eye axis of 24.35 should go to the ophthalmology department of a regular hospital in a timely manner, and under the guidance of the doctor to take appropriate measures to control the degree, so as not to delay the increase in severity.