Problems after a surgery are rare, but they can occur. These problems can include infection, bleeding, inflammation (pain, redness, and/or swelling), loss of vision, double vision, and high or low eye pressure. With prompt medical attention, these problems can usually be treated successfully.
Sometimes, the eye tissue that encloses the intraocular lens (IOL) becomes cloudy and may blur your vision. This condition is called an after-cataract. An after-cataract can develop months or years after a cataract surgery.
An after-cataract is treated with a laser. Your doctor uses a laser to make a tiny hole in the eye tissue behind the lens to let light pass through. This outpatient procedure is called a YAG laser capsulotomy. It is painless and rarely results in increased eye pressure or other eye problems. As a precaution, your doctor may give you eyedrops to lower your eye pressure before or after the procedure.
This answer is based on source informationfrom the National Institute of Diabetes and Digestive and Kidney Diseases.