The number of diopters examined after dilated pupil examination is generally accurate, but it is not the number of diopters to be used in the prescription of glasses. The process of dilated optometry paralyzes the ciliary muscles, which is different from the usual refractive error, so it is important to combine the results of various tests when fitting the glasses. Dilated optometry is the process of dilating the pupils of the eyes by applying drops of dilating agent to the eyes, causing the pupils of the eyes to dilate and the ciliary muscles to be in a state of relaxation. It is highly accurate, and the error of the test results will be reduced, but it is not used as a corrective measure for the prescription of glasses. The correction of vision through the prescription of glasses requires other examinations in ophthalmology, including optometry, visual acuity examination, trial lenses and so on. There will be a certain difference between the number of diopters examined after dilation and the number of diopters examined in normal times, which is a normal physiological phenomenon and should be examined by a combination of various factors. If you need prescription lenses, it is recommended to go to a professional ophthalmology clinic in time, and have the operation and examination conducted by a professional physician in order to achieve good results.