Is it normal to have double vision after a concussions?

[Taloga]

I got bucked off a horse and was unconscious for several minutes. But today I'm still suffering double vision and trouble focusing. The doctor said this is normal and there is no need to have diagnostic imagine at the hospital. If someone had also suffered double vision after a concussions, how long does it take to go away naturally?

[Talowah]

I also got a moderate concussion before and at first there was a headache but it went away 2 days later. I also had double vision if I moved my head or eyes quickly, it lasted for about one week and finally went away.