A 4.6 eye is usually in the range of 150-200 degrees of myopia, or 250 degrees of myopia if the eye is more compensatory. There is no clear correspondence between vision and myopia, but the approximate range of myopia is around 150-200 degrees. For children with unsatisfactory visual acuity, who need to wear eye correction or who are increasing the number of degrees faster, you can consider wearing keratoconstrictive lenses for correction. If you are an adult, you may need to wear a pair of nearsighted glasses to improve your vision to meet your daily vision needs and the safety of your daily life, if you are a driver or other professional who works at a distance.