Patients with eye diseases such as keratitis, conjunctivitis, or uncontrolled systemic diseases such as high blood pressure and diabetes are generally not recommended to have cataract surgery, and the specific possibility of surgery needs to be evaluated by the doctor. In general, if the patient suffers from keratitis, conjunctivitis, dacryocystitis and other eye diseases, such diseases may increase the risk of post-surgical infections, which is not conducive to the recovery of the patient’s body, so such patients are generally not recommended to undergo cataract surgery, and the inflammation needs to be controlled, and then consider surgical treatment. Patients with high blood pressure, diabetes mellitus, or cardiac insufficiency are also not recommended to undergo cataract surgery if their blood pressure, blood sugar, or cardiac function is not well controlled and the patient’s body cannot tolerate cataract surgery. Cataract patients are advised to seek prompt medical attention to assess their condition and follow medical advice.