Double Vision wrote:So I was thinking that maybe the laser didn reshape the cornea correctly...
This is inconsistent with how I understand your symptoms. If I understand you correctly, you can lower your eyes and look at an object in the distance without doubled vision (as an example, the foot of a tree), but if raise your eyes up keeping you head in the same position, the ghosting occurs.
If I have this right it sounds like a muscle imbalance. You may have some astigmatism or corneal irregularity. It is possible that your vision will ghost due to an irregular cornea, however this irregularity will usually follow your gaze.
Your eye doctor will be able to determine if you have any astigmatism and/or if you have an alilgnment problem.