Journal of Otolaryngology and Ophthalmology of Shandong University ›› 2022, Vol. 36 ›› Issue (4): 97-102.doi: 10.6040/j.issn.1673-3770.0.2022.020

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A clinical study on the effect of phacoemulsification on the retinal structure in the macular region of senile cataract

YANG Ru1, ZHANG Yuguang2, XU Xianghui3, WU Xuelian3, TAO Yuan3, TAN Yue3   

  1. 1. The School of Clinical Medical, Weifang Medical University, Weifang 261042, Shandong, China;
    2. Department of Ophthalmology, School of Clinical Medicine, Weifang Medical University, Weifang 261042, Shandong, China;
    3.Department of Ophthalmology, The Jinan Second People's Hospital, Jinan 250000, Shandong, China
  • Published:2022-07-11

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Abstract: Objective Optical coherence tomography angiography(OCTA)is used to observe the changes of blood flow density, retinal thickness, and foveal avascular zone(FAZ)in the macular region after phacoemulsification in patients with senile cataract. The objective of this study is to explore the influence of intraoperative parameters on the structural changes of the macular area and to explore the factors affecting postoperative visual acuity. Methods This is a prospective observational study. Patients with senile cataract who underwent phacoemulsification before operation, and 1 day, 1 week, 1 month, and 3 months after operation, underwent imaging of the macular area using the 3×3 mm OCTA scan to obtain the macular blood flow density, thickness of the retina, and the area of FAZ. Cumulative release energy(CDE)and effective phacoemulsification time(EPT)were recorded, and their correlation with the changes of macular retinal structure was analyzed. Using binary logistic regression analysis to explore the factors affecting postoperative visual acuity. Results Forty-one cases(41 eyes)were included in the final analysis. Compared with those before operation, the linear density and perfusion density of the macular area increased at 1 day, 1 week, 1 month, and 3 months after operation(P<0.05), and the FAZ area decreased(P<0.001); the retinal thickness in the macular increased at 1 month and 3 months after operation compared with preoperative(P<0.05). There was no correlation between CDE and EPT and macular retinal structural changes(P>0.05), and postoperative best corrected visual acuity(BCVA)had no correlation with macular blood flow density, retinal thickness, FAZ area, CDE and EPT(P>0.05). Conclusion After phacoemulsification, the blood flow density and retinal thickness in the macular increased, and the FAZ area decreased. The surgical parameters were not the main factors that caused changes of the postoperative retinal structure. The changes in surgical parameters and retinal structure had no effect on postoperative visual acuity. We should further explore the reasons for the changes of postoperative retinal structure in the macular region and the factors affecting the recovery of postoperative visual acuity.

Key words: Optical coherence tomography angiography, Phacoemulsification, Senile cataract, Blood flow density, Retinal thickness, Foveal avascular zone

CLC Number: 

  • R776.1
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