0.2 How many degrees is your eyesight?

A vision of 0.2 is generally defined as a nearsightedness of about 200 - 300 degrees, but this is only a rough estimate and the exact degree needs to be determined by an optometry. A vision of 0.2 is usually considered a manifestation of myopia, which is a common eye problem. Myopia is caused by the excessive curvature of the lens and cornea of the eye, which causes light to not focus accurately on the retina, making distant objects appear blurred. Myopia occurs due to a variety of factors, including genetics, environment and lifestyle. If vision is 0.2, it is recommended to go to the hospital or optician for an optometry to determine the degree of myopia. Depending on the degree of myopia, you can choose to wear glasses or contact lenses to correct your vision. For minors, you can also consider using orthokeratology (OK glasses) to slow down the progression of myopia. In daily life, pay attention to maintaining good eye habits, such as maintaining correct reading and writing posture, controlling eye time, increasing outdoor activities, etc., to help prevent the occurrence and development of myopia. In addition, proper addition of some foods rich in vitamins A, C, E and zinc in the diet, such as green leafy vegetables, nuts, fish, etc., can also help protect eye health.