It is still not known whether you vision will improve as the ophthalmologist stated. I believe your condemnation of the ophthalmologist is based on speculation and guesses and as such, at least, premature if not totally unwarranted.
I also suggest you research the possibilities had you not,had the procedure. If there was fluid behind your retina, thst sugggests some level of increased pressure behind your retina. That suggests the possibility of a detached retina. That suggest a much more involved procedure and the realistic possibility of total or near total loss of vision in that eye.