Abstract: Objective:To compare the efficacy between small incision non phacoemulsification,and coaxial micro incision 2.2 mm and 2.8 mm incision phacoemulsification.Methods:One hundred and twelve patients(112 eyes) with cataract were randomly divided into the small incision group(38 cases),2.2 mm group(37 cases) and 2.8 mm group(37 eyes).The uncorrected visual acuity,best corrected visual acuity,refractive status,corneal endothelial count and postoperative complications before operation,after 1 week and 1 month between three groups were compared.Results:Compared with before operation,the uncorrected visual acuity and best corrected in three groups were significantly improved after operation(P<0.05).The increasing degree of vision in small incision group,2.2 mm group and 2.8 mm group after 1 week and 1 month gradually decreased(P<0.01).Compared before operation,the corneal astigmatism in three groups significantly decreased after operation(P<0.01),and the differences of the corneal astigmatism after 1 week and 1 month of operation between three groups were statistically significant(P>0.05).The corneal endothelial cell counts in three groups significantly decreased after operation(P<0.01),the differences of which between three groups were not statistically different(P>0.05).There was no significant difference in the incidence rate of complications between the 3 groups after surgery(P>0.05).Conclusions:Small incision non phacoemulsification has the advantages of small trauma,quick recovery,good vision of naked eye,low cost and easy operation,which is worthy of promotion.