What risks and complications are associated with a vitrectomy?

Serious risks: Vitrectomy is a surgical eye procedure that is usually done to repair a retinal tear or detachment or remove a membrane growing on the retina. Virtually everyone having a vitrectomy will get a cataract within 2 years. There is also a risk for further retinal damage or swelling that could seriously diminish vision. Carefully performed vitrectomy for correct reasons can restore damaged vision.