Influence of active versus passive phacoemulsification fluidics systems on optic disc blood flow in patients with glaucoma
Journal Title: Eye Science (Yanke Xuebao) - Year 2021, Vol 36, Issue 8
Abstract
[Objective:] To compare the influence of active versus passive phacoemulsification fluidics systems on optic disc blood flow in patients with glaucoma. [Methods:] Patients were divided into 2 groups by a random number table method, namely the active fluidics system group and the passive fluidics system group. The intraoperative cumulative dissipated energy (CDE) was recorded, and the best corrected visual acuity (BCVA), intraocular pressure, optic disc blood flow density and retinal nerve fiber layer thickness were measured at the follow-up of 1 day, 1 week, 1 month and 3 months. [Results:] During phacoemulsification, CDE in the active fluidics system group was lower than that in the passive fluidics system group (5.6±1.3 vs. 6.3±1.2, P=0.034). One day after the surgery, the circumpapillary vessel density (cpVD), whole image vessel density (wiVD) and inside disc vascular density (inside disc VD) in the passive fluidics system group were higher than those in the active fluidics system group (P<0.05), and the differences were not statistically significant at the rest of the follow-ups (P>0.05). The retinal nerve fiber layer in passive fluidics system group was thicker than that in active fluidics system group at the follow-ups of 1 week and 1 month (P<0.05), and the difference was not statistically significant at the follow-up ofs 1 day and 3 months. [Conclusion:] Compared with the traditional passive fluidics system, the active fluidics system can reduce the CDE during phacoemulsification surgery. It can reduce the inflammatory congestion of the optic disc caused by intraoperative high intraocular pressure on the early postoperative stage. In addition, it can also protect retinal nerve fiber layer.
Authors and Affiliations
Lijuan LIU, Guangyu ZHAO, Liqing WEI, Jia FANG, Jiahui SHOU, Li NIE
Keywords
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- EP ID EP763553
- DOI 10.3978/j.issn.1000-4432.2021.07.18
- Views 13
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