AIM:To evaluate the clinical effect of splitting irrigation and aspiration in the process of cataract surgery on removing cortex and soft nuclear.METHODS:Twenty-six cases with non-complicated traumatic cataract hospitalized in the department of ophthalmology in the First Affiliated Hospital of Guangxi Medical University from 2006 to 2007,were assigned to clinical trial group.Data of 26 cases with traumatic cataract from 2004 to 2005 in the same department,which were performed with double-barreled irrigation/aspiration(I/A)cannula,were reviewed and used for control groups.The eligibility of these two groups was similar.RESULTS:Comparing with the double-barreled I/A,in the splitting I/A,the time of cortex/soft nuclear removal was shorter,the numbers of the anterior chamber fluctuation lesser,the postoperative visual better,the inflammatory reaction lighter.CONCLUSION:The utilization of the phacoemulsification I/A system to removal cortex/soft nuclear in traumatic cataract surgery is safe and effective.