The average length of a normal adult eye axis is 24mm, and a child’s eye axis of 26mm is on the long side. Children with an eye axis of 26mm, but not myopic, may have a flat cornea or a small lens refractive error. 1. Flat cornea: a congenital developmental abnormality that manifests itself as a low refractive power, usually with hyperopia, which is neutralized by its own myopia. 2. Small lens refractive error: A small lens refractive error prevents children from developing myopia. Appearance of this situation, no obvious refractive error, can be temporarily observed, if it is caused by flat cornea, you can choose hairy fruit rutaecarpine nitrate eye drops to shrink the pupil, choose carteolol hydrochloride eye drops to reduce intraocular pressure and so on, you can also carry out surgical treatment. If there is refractive error, wear glasses in time. Children with eye axis abnormalities, timely to the hospital, clear causes and active treatment, so as not to delay the condition.