How long before sight returns after catarct and vitrectomy operation on an eye?

Variable: It depends on how much damage the eye sustained prior to your surgery. If the eye was otherwise in good shape, vision should return within 4 to 8 weeks. If there was damage to the retina or optic nerve visual recovery will be limited.

Depends: The eye usually starts to look and feel better after a couple of weeks. Visual recovery depends on the severity of the underlying retinal disease and what techniques were used during surgery. For example, if gas or oil where used, your recovery might be weeks or months. Hope this helps. Good luck.