AIM: To observe application of underwater bubble method capsulorhexis overmature period to improve the small incision cataract surgery, so as to explore the clinical value of the surgical method.

METHODS: From Jul. 2012 to Mar. 2016 at the grassroots of blindness 58 people fail in the 66 eyes overmature period of cataract were randomly divided into underwent capsulorhexis by underwater bubble method to improve the small incision cataract surgery group(36 eyes of 30 cases)and conventional viscoelastic agent underwent capsulorhexis small incision cataract surgery group(30 eyes of 28 cases).

RESULTS: A total of 66 eyes in success rate of continuous circular capsulorhexis: 92%(33/36 eyes)of underwater bubble method, method of viscoelastic agent only 40%(12/30 eyes). Two groups of cases of postoperative corneal endothelial cell density are compared with preoperative significantly reduced, no significant statistical difference between the two groups(P>0.05).

CONCLUSION: Underwater bubble method capsulorhexis difficult to overmature period of cataract surgery capsulorhexis solution is a better way.