A spherical lens minus 1.50 represents 150 degrees of myopia, which needs to be corrected by an appropriate method under the guidance of a doctor. In the optometry, there will be some checking data on the optometry list, the degree of spherical lens is on behalf of farsightedness or nearsightedness, if the spherical lens is positive, it represents farsightedness, and if the spherical lens is negative, it represents nearsightedness, and minus 1.50 represents 150 degrees of myopia. Myopia may be caused by eye development problems, or by bad habits such as spending too much time with the eyes, looking too close to things, staying up too late, etc. It can be corrected by wearing framed glasses, dispensing corneal contact lenses, or myopia surgery. The specific correction method should be determined by going to a regular hospital for an accurate optometry, consulting a professional doctor’s opinion and based on the optometry data.