Double vision even after 1.5 years of ASA (Advanced Surface Ablation). Are there any hopes of improvement?

I got my eyes operated (ASA) about 1.5 years ago. The expected recovery time was 15 days. Tthe error in the vision is gone, but the corneal healing is not yet complete. Consequently, I suffer from double vision because of irregular cornea. Doctor says the process is taking time and will eventually complete, easing the double vision. However, I have little hope of further improvement as the ghosting has been persistent for many months now.