Is It Safe To Undergo Eye Surgery Twice For Strabismus?

Hi I had eye surgery on March 4, 2015 for strabismus. My doctor states the eye was undercorrected and I will probably require another surgery. I don t understand what this means. I asked and was told she didn t do enough?My eye use to turn out, now it looks ok, but not the same size. The coloured part of my eye looks smaller on the operated eye. Is this normal and will it go back to the proper size?I thought this web site was free. So no thanks. I will ask my dr.