Thanks for sending your query to us.
This is diabetic ophyhalmoplegia.There is no cause of worry.
We in our practice patch alternate eye and not give prisms.The reason being that by giving prisms you are sort of giving crutches to the eye and not allowing the muscles to regenerate their own power.We have to take care of duoble vision and that we do by patching one eye ,though this may look a bit unsightly.
The management consists of control of diabetese,vit.B complex and we at times give anti inflammatory drugs if needed.
This is a self limiting prblem and may take up to 3 months to recover and by supportive tt. only.
Have patience and as your CT is normal there is not much cause to worry.
Please do get back to me in case of any further query in this regard.