After this long, if the stitch is sticking out, it could be safely removed by your surgeon. Sometimes, you can have a foreign body sensation after surgery that is not caused by the stitch. As far as the prognosis, it depends on the refraction of the eye. If there was under- or overcorrection or if there is residual astigmatism, these will all have to be treated before you can have sharp vision. A YAG may help if the capsule is hazy. Finally, the Crystalens works best with two eyes. Sometimes, after one eye is done, things are still a little off until the second eye is done and they both work together.
Hope this helps and thank you.