Application of Burst Mode in Phacoemulsification of Hard Nucleus Cataract

Objective To investigate and compare the therapeutic effect of burst mode and continuous mode in the phacoemulsification of hard nucleus cataract..Methods Sixty cases of hard nuclear cataract(69 eyes) were randomly divided into continuous energy mode group(31 cases) and burst mode group(38 cases).The actual time and average energy of phacoemulsification in both groups were recorded.The best correction vision of operated eyes,edema level of cornea and surgery complications was compared on 1,3 and 7 days after operation.Results The time and average energy in the burst mode group were much less than that in the continuous mode group,and the difference had statistics significance(P0.05);The difference in the rate of posterior capsule rupture in the operation was not significant between the two groups(P0.05);The postoperative best corrected visual acuity on day 1 and 3 in the burst mode group was better than that in the continuous energy mode group(P0.05);The incidence of corneal edema in the burst mode group was obvious lower than that in the continuous mode group(P0.05).Conclusion The burst mode group in phacoemulsification of hard nucleus cataract can obviously decrease the energy and time,reduce the incidence of corneal edema,is more safe and effective in clinical use.