Inclusion Criteria:  > 18 years old; axis length≥26mm; Visually significant cataract; The patient is willing and able to complete all necessary follow-ups and examinations.  Exclusion Criteria:  Intraoperative or postoperative complications: such as intraoperative posterior capsular rupture, zonular dehiscence, secondary glaucoma, endophthalmitis, etc.; Other ocular comorbidity: such as keratopathy, glaucoma, uveitis, retinopathy, lens dislocation and ocular trauma, etc.; History of intraocular surgery; Severe systemic diseases: such as severe hypertension, diabetes, heart disease, Alzheimer's, Parkinson, etc.; Any condition that the study physician considers to be an impediment to the clinical trial.