If it is a people's police post, please refer to the special standards for civil servants' physical examination:

Unilateral naked eye vision is less than 4.8, which is unqualified (except for professional and technical posts of state security organs). Forensic medicine, physical evidence inspection and identification, information and communication, network security management, financial accounting, foreign language and minority language translation, traffic safety technology, safety prevention technology, explosive handling, police dog technology and other positions, the unilateral corrected vision is less than 5.0, which is unqualified.

If in doubt, please consult the public education enterprises in China.