Posterior capsule opacification (PCO) is a common side effect of cataract surgery.
It can occur weeks or even a couple of years after the surgery. The posterior capsule behind the new lens undergoes secondary opacification due to the migration, proliferation, and differentiation of lens epithelial cells. The symptoms are similar to that of the original cataract; Blurry or cloudy vision.
Fortunately, it can easily be treated with a quick and painless laser procedure to make the vision clear again.