Whether it is normal to wear 400-degree presbyopic lenses after cataract surgery needs to be determined according to the implanted IOL. If a patient is implanted with a monofocal IOL, it is normal to wear 400-degree presbyopic lenses for near vision after surgery, while patients implanted with a multifocal IOL usually do not need to wear presbyopic lenses. Cataract patients can improve their vision by having their own cloudy lens surgically removed and an IOL implanted. The surgery itself will destroy the eye’s ability to adjust to near objects. The traditional implanted IOL is a monofocal IOL, which can see distant targets clearly, but when looking at near objects, it is not clear due to the loss of adjustment, so the patient needs to wear presbyopic lenses to look at near objects. Multifocal IOLs increase the optical depth of field of the crystal, so that patients can see clearly both at a distance and near, and generally do not need to wear presbyopia when seeing near. After implantation of this type of IOL, it is not normal for patients to need to wear 400-degree presbyopia glasses for near vision, which may be caused by inaccurate calculation of the degree of the IOL. It is recommended that after cataract surgery, patients should follow the doctor’s instructions, have regular checkups, and consult the doctor in time after discomfort occurs.