Vision problem every since I smoked Marijuana. It has been 9 months. Please help.

[Edwin78]

I smoked marijuana 9 months ago for my first and only time. My friend as a joke told me to hold it for 7 seconds, but I took it seriously and he told me to stop at 5, laughing.

Since that day I have had a vision/brain problem. The best way I can describe it is that my peripheral vision has gone all fuzzy, I don't feel as 'alive', and I feel somewhat disconnected with the things I am looking at. Its most annoying when I look at a person's face - its like they have an outline around their head, and everything around it are more fuzzy. I started using glasses a month ago and the problem is still there. This isn't psychological - its obvious to me that there is something wrong.

Not sure whether its related but a month and a half before I smoked I suffered a minor concussion, and I was cleared from the concussion after 3 weeks.

After 9 months I have not noticed any improvement. I am 18, healthy, with no other conditions.

I plan on seeing a neurologist soon, but I would greatly appreciate any opinions from you guys in informing me of what is going on, whether my problem is curable, whether there is a light at the end of this depressing tunnel...

Thank you.