Presbyopia and refractive errors, including myopia, hyperopia, and astigmatism, should be considered the largest group of patients that ophthalmology faces. However, in our work, we found that most patients who need glasses have a small percentage of standardized medical optometry. There are several reasons: First, the time required for standardized medical optometry is about 30-40 minutes per patient, which is not allowed for optometry centers or optical stores that need to fit 40-50 patients in a morning; second, some patients are often in a hurry and do not have high requirements, as long as they can see clearly, and do not pursue the comfort of glasses; third, standardized medical optometry is not available in some hospitals And ordinary optometry in the price to distinguish, in objective can not form an incentive mechanism for optometrists. However, we say that standardized medical optometry is very important: 1, standardized medical optometry a set of procedures down a dozen steps, including red and green balance, crossed column lens, binocular balance, etc., the accuracy is necessarily higher than ordinary optometry, can effectively control the comfort of the lens. In fact, the accuracy of the prescription itself is more important than wearing what brand of lenses; 2, standardized medical optometry, especially for myopic eyes, can slow down the progress of myopia in youth to the greatest extent, because myopia is in principle the smallest negative lenses in exchange for the best correction, which is different from farsightedness; 3, standardized medical optometry is particularly important for children with strabismus, inaccurate prescription will lead to Inaccurate prescription can lead to aggravation of the disease. The ophthalmology clinic of Peking University People’s Hospital conducts myopia clinics during daytime on Mondays, Tuesdays, Thursdays and Fridays, mainly for refractive error patients with high quality of life requirements, and carries out standardized medical optometry. For myopic patients with less than 1000 degrees of myopia, we carry out excimer laser in situ keratomileusis (LASIK), and for myopic patients with more than 1000 degrees of myopia, we carry out intraocular contact lens (ICL) implantation for myopia correction, which can achieve excellent visual quality. The second part is the fitting of frame glasses, corneal contact lenses, RGP lenses, and OK lenses.