AIM:To evaluate the clinical comparative observation of three methods for treating cataract complicated with glaucoma.METHODS:Ninety-six cases (96 eyes) with cataract complicated with glaucoma were equally divided into three groups,A group were treated by the cataract phacoemulsification and intraocular lens implantation.B group were treated by the cataract phacoemulsification,intraocular lens implantation combined with trabeculectomy.C group were treated by the combined trabeculectomy surgery.RESULTS:The intraocular pressure (IOP) decrease of A group and B group was significantly higher than that of C group (P<0.05).The IOP decrease of B group was the best,but had no significant difference (P>0.05) compared to the A group.The visual acuity of A group and B group was obviously better than C group (P<0.05).The deepening amplitude of anterior chamber depth of A,B group was significantly higher than that of C group (P<0.05).The deepening amplitude of anterior chamber depth of B group was higher than that of A group,but had no significant difference (P>0.05).CONCLUSION:The phacoemulsification,intraocular lens implantation combined with trabeculectomy can significantly deepen the anterior chamber,open chamber angle,and effectively decrease IOP and improve visual function,which is a safe and effective surgical method for treating cataract complicated with glaucoma.