Double Vision My Mother Has Had Double Vision For Six Days Now. Has Anyone Else Had This? How Long Did It Last?

My mother has had double vision for six days now. Has anyone else had this? How long did it last? - double vision

My mother had a double vision (binoculars / vertical diplopia) for six days now. It came suddenly, without trauma to the head or any other cause. You can see a little bit when you close one eye, but it makes him lose his balance. Has anyone else had this? If so, how long will it last?

Note that they saw an eye doctor. He said it was a constant fact that disappear on their own within six to eight weeks.

Thanks in advance!