J Korean Ophthalmol Soc > Volume 56(12); 2015 > Article
Journal of the Korean Ophthalmological Society 2015;56(12):1860-1866.
DOI: https://doi.org/10.3341/jkos.2015.56.12.1860    Published online December 15, 2015.
Comparison of Clinical Outcomes between High and Low Fluid-Dynamic Parameters during Phacoemulsification.
Won Jae Heo, Jin Young Lee, Hong Kyun Kim
1Department of Ophthalmology, Kyungpook National University School of Medicine, Daegu, Korea. okeye@knu.ac.kr
2Metro Eye Center, Daegu, Korea.
초음파유화술의 높고 낮은 유체 역동학 지표들에 따른 수술 결과 비교
경북대학교 의학전문대학원 안과학교실1, 메트로 안과2
Received: 29 May 2015   • Revised: 8 July 2015   • Accepted: 25 September 2015
To compare the clinical outcomes between high and low fluid-dynamic parameter settings during phacoemulsification. METHODS: In this retrospective study we analyzed 183 consecutive eyes with senile cataracts that underwent cataract surgery between October 2010 and January 2015. The phacoemulsifications were performed with high and low fluidic parameter settings, which were designated by different fluid heights, aspiration flow rates, and vacuum settings. We measured and compared the intraoperative factors including fluid consumption, cumulative dissipated energy (CDE), ultrasound time, intraoperative complications, and pupil size changes during the phacoemulsification. Central corneal thickness (CCT), endothelial cell density (ECD), uncorrected visual acuity (UCVA), and best corrected visual acuity (BCVA) were measured and compared preoperatively and postoperatively. RESULTS: There was no statistically significant difference in the fluid consumption, CDE, or ultrasound time during phacoemulsification between the 2 groups. The frequencies of intraoperative complications were not statistically significant. UCVA, BCVA, and ECD were not statistically significantly different between the 2 groups during the postoperative follow-up. The low parameter group showed the lower increase in CCT on postoperative day 30. CONCLUSIONS: The phacoemulsifications with low fluid-dynamic parameter resulted in less damage to intraocular tissue without any significantly different postoperative findings. The phacoemulsification with low fluid-dynamic parameter setting is more advantageous due to stable and safe aspects.
Key Words: Cataract surgery;Fluid-dynamic parameters;Phacodynamics;Phacoemulsification

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