Yes, it can be possible that the double vision may be caused by a stroke, which is usually seen in cerebrovascular disease. This is due to the injury of brainstorm or the damage of cranial nerve that leads to the disfunction of musculus ocularis. If so, then you had better go to the doctor's for medical treatment such as preiscription of neurotrophic drug treatment combined with Chinese acupuncture. You should take time to go through it with patience. Have good rest and sleep, eat more vegetables and fruits, do not drink or smoke at all. Besides, do some exercises that are not very fierce such as taking a walk in the morning, also do some eye exercises to massage the muscles around the eyes. Last but not least, keep in a good mood and be optimistic.