Cataract patients need to go to the ophthalmology department of the hospital as soon as possible for examination and treatment if the grinding pain is caused by the poor healing of the surgical incision, such as recombinant epidermal growth factor drops. If it is caused by poor healing of the surgical incision, you can order drugs to promote the repair of treatment, such as recombinant human epidermal growth factor eye drops, etc.; if it is caused by corneal infection, you need to order antibiotic medication, such as levofloxacin eye drops and so on. It is normal for cataract patients to have a foreign body sensation in their eyes after surgery, but it usually disappears in 2~3 days, and it is not normal for the eyes to still have grinding pain for more than 40 days after surgery, so they need to go to the ophthalmology department of the hospital as soon as possible for examination. If it is caused by poor healing of the surgical incision, you can order recombinant human epidermal growth factor drops, recombinant bovine basic fibroblast growth factor drops, etc., to promote its repair, and the symptoms will soon disappear. If keratitis is caused by bacterial infection of the cornea, antibiotic eye drops, such as levofloxacin eye drops and tobramycin eye drops, are needed. After cataract surgery, you need to follow up with your doctor on a regular basis and adopt a targeted treatment plan according to the recovery situation. The medication should be used as prescribed by the doctor, do not increase or decrease the medication by yourself.