The double vision is divided into monocular and binocular double vision. 1. Double vision: If both eyes have double vision at the same time, this is called double vision, mainly consider eye muscle paralysis, which can be caused by nerve and muscle damage, resulting in double vision due to asymmetric movement. 2. Monocular double vision: first of all, we should make clear whether it is refractive error, that is, whether there is myopia or astigmatism, if so, it is recommended to take an optometry and wear glasses for correction; there is also a possibility of subluxation of the lens, which will also appear to see double vision, and then we should carry out surgical treatment in a timely manner. Caused by the eyes to see things to see is heavy shadow of more reasons, after rest for a long time can not be relieved, must be timely to the regular hospital ophthalmology consultation.