A, can save money and time for everyone Amblyopia is caused by the vast majority of hyperopia, children as they grow older, the eye axis gradually become longer, the degree of hyperopia gradually reduced, after the reduction of the eye degree and the degree of glasses worn no longer match (equivalent to the body thinner still wearing the previous fat clothes), which is the amblyopic children almost every year to replace the glasses reason. In the past, one of the things that had to be done before each change was to order atropine to dilate the pupils, because children are more adjustable and must be dilated by atropine to check their farsightedness before changing their glasses. Each dilated pupil can take up to a month, causing great inconvenience to the child’s life and studies, and because the examination three days after the pupil is dilated and the review three weeks later add up to two trips from home to the hospital, which is not only time-consuming and expensive for parents (the cost of four round trips to the hospital is far more than the cost of the examination for axis measurement). The most important thing is that each child’s eye axis grows longer and the rate of reduction of hyperopia varies. This parameter is the axis of the eye, which is closely linked to the degree of hyperopia. With this eye axis test, we can decide when it is appropriate to order atropine to dilate the pupil. Third, the innovation of the examination Amblyopic patients to do eye axis measurement examination is an innovation based on the original dilated pupil optometry model, which can avoid meaningless dilatation and avoid meaningless trouble for patients. Even for amblyopic patients who have been wearing glasses for a long time and whose adjustment has been relaxed, they can change their glasses without dilating the pupils if the results of the axial measurement and the optometry are consistent, which is very convenient for them. After this explanation, amblyopia patients should know the necessity and importance of axial measurement!