The normal range of spherical lens S for the average adult is between +25 degrees and -25 degrees, which is within the normal range. The left globe lens is usually the degree of nearsightedness or farsightedness in the left eye, and the S represents the degree of the globe lens, usually “+” means farsightedness, “-” means nearsightedness, and normal adults have low degrees of farsightedness or low degrees of nearsightedness, which have a small effect on the vision, and whether or not to wear the eye mainly depends on their own needs. Whether or not to wear the eye mainly depends on whether one has the need or not. Left eye refractive lens S refers to the degree of spherical lens, used to show farsightedness or nearsightedness, generally less than 25 degrees is normal, when the left eye refractive lens S degree exceeds the normal range of visual acuity, contrast sensitivity reduction and other visual anomalies, the patient can choose to wear the appropriate glasses to correct. Patients with refractive anomalies are advised to consult a doctor in time to assess their condition and follow the doctor’s instructions for treatment.