eyelid closing after strabismus surgery

        Hi, i've just had strabismus surgery which has gone reasonably well. However, my upper eyelid is closing by about 20-30%, which is worse following the strab surgery. My strab surgery was covered by private medical cover. Is it likely my eyelid surgery will be (if i say it was caused due to the strab surgery) Im 95% blind in this eye too. I'm ok looking up, but not at eye level. If its not covered, what estimate would cost be?