AIM: To discuss clinical therapeutic effect of syringe needle suction method in treating white expansion cataract capsulorhexis.

METHODS: Continuous circular capsulorhexis(CCC)treatment for white expansion cataract was adopted in 166 eyes by applying syringe needle suction method including using 15° stab knife as auxiliary incision at 3:00 place, injecting trypan blue stain with sterilized air about 0.1mL to staining anterior capsule, injecting sodium hyaluronate into anterior chamber, using a 3.2mm stab knife as above transparent corneal incision, keeping primary incision a bit smaller, using a 1cc 27G syringe needle to puncture into anterior capsule with the slope upwards to suct the liquefied cortex, sloping lateral rotation without expanding the forward puncture incision, oppressing gently lens nucleus, continuing to suck up liquefied cortex which had moved forward, and filling in anterior chamber with enough sodium hyalurantae. And then after using a 3.2mm stab knife to expand corneal incision, CCC was finished.

RESULTS: A total of 166 eyes with white expansion cataract applied this method. The circular capsulorhexis were completed successfully in 155 eyes with a success rate of 93.4%.

CONCLUSION:CCC treatment applying syringe needle suction method in white expansion cataract capsulorhexis can not only reduce the pressure of lens and capsular bag to realize the goal of posterior continuous curvilinear capsulorhexis, but also reduce the inconvenience of surgical operation brought by the incompleteness of capsule and complication. It is a safe, simple and effective operation method, which is easy to master and apply.