Refractive errors of 50 degrees and 75 degrees in both eyes, the need for glasses is related to the patient’s current level of naked-eye vision. If the patient’s naked-eye vision is able to reach a normal 1.0, he/she may not need to wear glasses for the time being; if it is not possible to reach this level, he/she should wear glasses to correct the error. Refractive error is a common eye disease and can be further categorized into three different types: astigmatism, myopia and hyperopia. Refractive error can affect a patient’s vision, but the magnitude of the effect on vision is related to the degree of refractive error, the higher the degree, the greater the effect. Refractive errors of 50 and 75 diopters are very mild and have a relatively small effect on vision. If the patient’s visual acuity is still at a normal level, i.e., 1.0, glasses are usually not needed. However, if the naked eye visual acuity is less than normal, it is better to wear glasses to correct the refractive error, so as not to cause visual fatigue and lead to the continued growth of refractive error. It is recommended that patients go to the ophthalmology department of the hospital in a timely manner to have a comprehensive examination by the doctor to formulate a plan.