Smoking too much causes bad vision, or is it just me?

I'd like to showcase a photo to treat your eyes to, but this is simply just a rant regarding my eyes, being high.

I need corrective eye glasses. I notice that my vision is becoming weaker, and I catch myself starring at the ipod screen trying to decode the fuzzy letters of that awesome song for way tooo long, I finally have to surrender and ask the nearest person for their eye sight, and that makes me feel defeated. I don't like feeling defeated. So, I should go see an optometrist, that is what someone with poor vision should do, right?  Not if your bad vision is caused by WEED.
Allow me to explain... I have a theory that smoking weed causes bad vision, or it could just be me, that smoking weed causes me bad vision. Which is ironic, because, marijauna is used to treat the eye illness, Gaucoma which both my Grandma and Dad have. I refuse to believe that I am the only one with this issue so, one day I would like to conduct a research survey dedicated to marijuana and it's dislike of eyeballs. That way I can prove to myself that ' It's not just me' or  that it is just me...
I have been a marijuana activist for 6 years now, and marijuana has and does make my eyes go bad. More so blurry, and twinkleee. I want to compare it to something, but my analogies don't do justice, because they usually have no reference to what it is I am trying to get ascross. I will give one anyways.. Late night of drinking, usually some hard alcohol. the drunker you get the more you forget about your pretty eye makeup you took so long to paint on, and you rub, scratch, and  smear that pretty stuff into your eyes. you don't care. you're drunk. Now, it is morning. You wake to extreme dehydration, and the need to pee. So, naturally you think to pee, and get a glass of water. And BOOM, you're blind. your eyes are blind, filled with alcohol, makeup, who knows what else, you are blind. Does this happen to other people, or is it just me? I could fill a book with "or is it just me's?" that could be a good book.
Now, hopefully my analogy helped you  understand how my eyes feel when they are high.
But, that deosn't help my conundrum... How do I go to the optometrist (He will know) to correct my poor vision if my vision is poor when I am high?
I could skip the opto.visit and go to rite-aid for some over the counter foldable "high-glasses"
hmm, I think I have just stumbled upon my next highventure.