白内障吸取术,是目前治疗先天性和青少年外伤性白内障的首选方法。为了避免在术中因前房形成负压致瞳孔变小,前房变浅而影响操作。就必须将前房吸出液进行精确的置换,使前房始终保持稳定的压力和状态。曾有人报道,把一个粗针头和一个细针头并排焊在一起,用粗针头吸内障,用细针 Cataract surgery, is the treatment of congenital and adolescent traumatic cataract preferred method. In order to avoid intraoperative negative pressure due to the formation of anterior chamber pupil becomes smaller, anterior chamber becomes shallow and affect the operation. It must be the anterior chamber aspiration fluid replacement, so that the anterior chamber always maintain a steady pressure and state. It has been reported that a thick needle and a thin needle welded side by side with a thick needle suction cataract, with a fine needle