Yes, it is normal for the cornea to swell during the first few days after cataract surgery. Cornea swelling or corneal edema may cause some short-term blurriness. Normally, surgery swelling will subside within a few days and vision becomes clear. Rarely, corneal swelling may not improve. This occurs when the cornea is weaker, like in Fuchs’ Dystrophy, or when the cataract is very dense and difficult to remove.