When a child undergoes a corneal curvature examination, both k1 and k2 values need to be looked at, and both are very important. Corneal curvature examination is an important tool used to observe whether the corneal morphology of the child is regular or not, and usually get three indicators of k1, k2, km, where k1, k2 suggests the corneal curvature in different axial directions, and km refers to the average corneal curvature. All three metrics are very important and it is important not to focus solely on one metric at the expense of the others. Ideally, all three indicators should be the same or very close to each other, which means that the corneal shape is very regular. If there is a big difference between k1 and k2, it means that there is corneal astigmatism. It is recommended that the patient go to the ophthalmology department of the hospital in a timely manner, and the doctor will formulate a treatment plan after a comprehensive examination.