1. Candidates with poor eyesight should pay great attention if they want to fill in the following colleges and majors: (1) Public security colleges: Naked vision of left and right eyes: science majors must be above 4.9(0.8), and liberal arts majors must be above 4.8(0.6). (2) Military academies: farsightedness per eye is less than 4.9(0.8), and students majoring in command, submarine, surface submarine, tank, surveying and mapping and radar are unqualified. The far vision of each eye is above 4.8(0.6); Or the hyperopia of one eye is above 4.7(0.5), and that of the other eye is above 4.9(0.8); Or the naked-eye farsighted vision of each eye is above 4.6(0.4), and the corrected vision of each eye is above 4.9(0.8), and the technical student is qualified. (3) Those whose naked eye vision is less than 5.0 at a glance cannot be admitted to the major: flying technology, navigation technology, fire fighting engineering, criminal science and technology, and reconnaissance. College major: the same or similar major as ocean ship driving or above (such as civil aviation air traffic control). (4) Anyone whose naked eye vision is less than 4.8 cannot be admitted to major: marine engineering, sports training and traditional national sports. Major: cooking and nutrition, cooking technology, etc.