I'm no doctor either, but have read alot about AN's and remember what they told me. The 8th nerve if not severely damaged from the tumor or the operation take quite awhile in most cases to come back, it goes limp, for some of us it comes back pretty quick and others it take a year or more. I think it depends on how much the tumor sack was stuck to the nerve, if it was damaged, swelling, and how long they had to tamper with it. I read one of Tony's post that said our brains now has to work twice as hard just to stand upright and we will get tired quickly because of the constant work it has to do.
You can get stick on weights to temporary help you eye to close at night I wouldn't do the gold weight inside the eye lid unless you will need if for some time. Reason is most of the time within a couple of months you eye will start to close at night and blink most of the time, plus it's another procedure you will have to be put under for, and you will have to deal with the eye lid healing and the problems the weight may create inside you eye lid.
IMO if you have no severe head pain you focus should be on preventing you eye from drying out. You will find this is very important especially at night, outside in the wind, cool temps or inside when the air is being circulated. Any air movement IMO will dry your eye out quickly. I can't even today set under the Ceiling fan on low very long. hang in there and hopefully you get some others to respond, it will or should get better in a couple of months.
They are several side effects of a AN brain tumor. Feeling tired, or getting tired quickly, not feeling like doing anything, balance, vision, dental, hearing, and Headaches are just a few of them. This is our life now you have to make adjustments, push yourself to get going everyday and remember if could of been worse. Hopely in a few months you will start to see some major improvements.
I'm three years and a month out. I too had all the same problems, took me about 3 months to get any strength back. I lost 27 lbs the week I was in the hospital. had to have the gold weight put in, My eye dried out quickly and bothered me for 6 months or more. Suffer from Migraine's and have head pain everyday. Today, My eye waters some, usually enough to keep up unless I am in windly or dusty conditions, no sage, but no lift, left side feels funny most of the time. When I start getting tired the left side starts saging. I still suffer from headache's and normal noises bother me. speaking voice is a little slurred and I don't like being in crowds or eating in crowd. the noise is unbareable and Feel like everybody is looking at me and wondering whats wrong with me. So what I'm tring to say is there is a lot of baggage that comes after the tumor is removed. In my case I just hope it don't come back, everything else I can deal with so far. Hang in there and get on the road to recovery!!!