Sam,
Brian is right. I really think you need to see your family doctor, if you have one, or the doctor who saw you after you hit your head. You may be referred to a doctor who specializes in head injuries. There are several causes of double vision. Muscle problems are the most common, but I believe this is NOT a muscle problem. You need to find out the cause, the prognosis, and the risk of activities where you could experience other head injuries.
You may be temped to ignore the problem, please don't. At some point it may be suggested that you also see a Pediatric Ophthalmologist. I know the title sounds strange, but they specialize in eye misalignment in people of all ages and can advise you if therapy is a good option. Right now, your glasses are only a "Band Aid" to let you see normally again. The need for prism correction could be temporary or it could be permanent, it depends on the actual cause. You really need to find out what it is.
The doctor may order an MRI (Magnetic Resonance Imaging) or other test to get a better idea of what is actually going on. MRI machines are very noisy, but otherwise the test is painless. It takes 20 to 30 minutes and you just like comfortably while it does its thing. They are amazing devices that lets the doctor see what is going on inside your body.
You are approaching adulthood and one of the responsibilities is to see to your your own health needs. Sometime the decisions are tough, but you HAVE to make them. About 18 years ago I had to make a very tough decision to have surgery on my heart, to bypass some clogged arteries, one was 96% blocked. The problem was caught on a stress test, before I had a heart attack. I was given a choice between blood thinners or heart surgery. I opted for the heart surgery. I have never regretted the decision.
Please let us know what you decide to do and the results.
Cactus
Statistics: Posted by Cactus Jack — Mon Jan 09, 2017 6:53 pm