AIM: To study thetherapeutic effect of two surgical methods for the cataract of the grade Ⅲ nuclear and above.

METHODS:Totally 52 eyes were performed retrospective analysis with phacofragmentation technique(group A)and extracapsular extraction surgery for cataract with small incision(group B)differently, and the effects of surgical treatment were compared.

RESULTS:Postoperative best corrected visual acuity(BCVA)of group A lens was better improved than group B, the difference was statistically significant(P<0.05); the difference of corneal thickness was not statistically significant(P>0.05); the effect of group A on corneal endothelium was larger than group B, the difference was statistically significant(P <0.05); the surgical complications of group A were lower than group B, the difference was statistically significant(P <0.05).

CONCLUSION: The technology of sonicating lens can be considered for the cataract of the grade Ⅲ nuclear and above.