The number of diopters may be higher than the number of dilated pupils, but the difference is generally small. The number of diopters refers to the number of diopters after the pupil returns to normal, which includes the number of diopters of pseudomyopia caused by ciliary muscle spasm; and after the eye is dilated, the number of diopters of pseudomyopia often disappears because of the relaxation of ciliary muscle, so if the patient has pseudomyopia, then the number of diopters of diopters of diopters of diopters of diopters of diopters of diopters of diopters of diopters of diopters of diopters is often higher, but generally not much difference. If the patient does not have pseudomyopia, then the number of diopters is mostly about the same as the number of diopters. Before wearing eyeglasses in the clinic, doctors often need to dilate the eye partially, and need to take into account the number of dilated pupils and the number of compound optical aperture to wear the appropriate number of glasses. It is recommended that patients after the optometric examination to consult the doctor in time, under the guidance of the doctor to wear the appropriate glasses treatment.