Improvement of cataract nuclear extraction methods in small incision non-phacoemulsification

Abstract:

AIM:To look for a approach which is simple,has no need for special equipment and fewer complications,and can quickly take out the lens nucleus.METHODS:Totally 746 cases of cataract surgery were performed in our hospital in 2010,from which 352 cases(352 eyes)of grade Ⅱ～Ⅳ nucleus senile simple cataract patients were chosen and randomly divided into two groups.During 2010- 03-29/05-15 conventional snare method fornuclear extraction was performed in 176 cases;During 2010- 06- 01/10-22 improved sodium hyaluronate and needle method for nuclear extraction was used in 176 cases.RESULTS:Statistical analysis showed:an average operative time of about 2.55min per patient was saved in improvement group than in conventional group,the difference was very significant (P<0.01).As for visual recovery of two groups 1week after surgery,the conventional group was 81.25% in off-disability rate,the improvement group was 92.61%,the difference was significant (P<0.05).As for visual recovery 1～3 month after surgery,the conventional group was≥0.5 in 139 cases (78.98%),the improvement group was≥0.5 in 165 cases (93.75%),the difference was significant(P<0.05).Intraoperative and postoperative complications in improvemeht group was also significantly less than those in the conventional group.CONCLUSION:The method of nuclear extractionin improvement group is simple,has no need for special equipment,saves time,has fewer complications and good visual recovery.It is suitable for the primary hospital,but also conducive to large-scale prevention of blindness in rural areas.

Key words:small incision;cataract;manual nuclearextraction;improvement