Ask an Eye Doctor and Get an Answer ASAP
Hi. I'm online and happy to answer your question today.
Let me make sure I am understanding you: When you tightly close your unaffected eye you experience double vision. This double vision is present with just the one eye open. Is this correct?
Have you seen an optometrist or an ophthalmologist for treatment of this problem? Did they give you any idea about what is causing your difficulty? Do you have any medical problems or take any medicine?