A white cloudy substance that is still visible after a recent cataract surgery is usually caused by mild corneal edema and the presence of an inflammatory reaction after surgery. Cataract surgery is currently the most effective way to treat cataracts. The surgery removes the cloudy lens inside the eye and implants a clear IOL to restore vision. Patients may have an inflammatory reaction in the early stages after surgery, which can lead to cloudy aqueous humor causing a white haze. In addition, if the patient’s cornea is in poor condition, corneal edema may occur after the surgery, which may also cause a white haze. For treatment, patients can use eye drops such as tobramycin dexamethasone to reduce postoperative inflammation and promote corneal edema, and most of the patients can recover gradually. Just after cataract surgery, still see a white cloudy material, patients need to go to the hospital as soon as possible ophthalmology examination, by the doctor to confirm the diagnosis, according to the condition, the use of targeted treatment programs.