[Zhonghua yan ke za zhi] Chinese journal of ophthalmology · 2002
[Clinical significance of accumulated energy complex parameter in phacoemulsification].
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Wang Xiangqun, Zhou Lijun, Huang Youli
Аннотация
OBJECTIVE: The accumulated energy complex parameter [AECP, AECP = actual power (AP) x time (T)] was put forward and used to analyze the correlation between phacoemulsification energy and postoperative complication.
METHODS: Ninety-two cases with senile cataract who underwent phacoemulsification were observed. The correlation between AECP and postoperative corneal edema rate (CER) was analyzed. The difference of AECP between the method of divided-conque and that of epi-capsular rotated-chipping was compared for the same hard nucleus (IV) cataract extraction.
RESULTS: The positive correlation was observed between AECP and CER (r = 0.974, t = 5.643, P < 0.05). The difference of the average AECP values existed between the two methods (t = 2.947, P < 0.01). The AECP and CER were lower in the method of divided-conque than that in epi-capsular rotated-chipping.
CONCLUSION: AECP can be used as a dynamic index to control the phacoemulsification energy in order to decrease CER predictably. Our study suggests that AECP provide an important integrated energy index to evaluate phacoemulsification.
METHODS: Ninety-two cases with senile cataract who underwent phacoemulsification were observed. The correlation between AECP and postoperative corneal edema rate (CER) was analyzed. The difference of AECP between the method of divided-conque and that of epi-capsular rotated-chipping was compared for the same hard nucleus (IV) cataract extraction.
RESULTS: The positive correlation was observed between AECP and CER (r = 0.974, t = 5.643, P < 0.05). The difference of the average AECP values existed between the two methods (t = 2.947, P < 0.01). The AECP and CER were lower in the method of divided-conque than that in epi-capsular rotated-chipping.
CONCLUSION: AECP can be used as a dynamic index to control the phacoemulsification energy in order to decrease CER predictably. Our study suggests that AECP provide an important integrated energy index to evaluate phacoemulsification.