Clinical Study Of Macular Vasculature Changes Following Cataract Surgery Of Phacoemulsification

Objective: Optical coherence tomography angiography(OCTA)is applied to analyze the changes of macular vasculature quantitatively in age-related cataract patients who undergo cataract surgery of phacoemulsification and aspiration with intraocular lens implantation(PEA+IOL).Methods: A total 51 eyes of 36 age-related cataract patients,who underwent cataract surgery of PEA+IOL from September 2018 to August 2019 in ophthalmology ward of Shengjing Hospital,were enrolled in the present study.The vessel length density(VLD),perfusion density(PD),foveal avascular zone(FAZ),central macular thickness(CMT)and best-corrected visual acuity(BCVA)were measured with OCTA 1 day preoperatively,3 days,1 week,1 month and 3 months postoperatively.Result: 1.There was a significant increase in VLD,PD and CMT(P<0.05),a decrease in FAZ following the cataract surgery(P<0.05).At 3 months postoperatively,VLD,PD and FAZ tended to fall back to the baseline,CMT had no trend of falling back to the baseline.2.There was no correlation between the changes of VLD,PD,CMT and BCVA(P>0.05),while there was correlation between the changes of FAZ and BCVA(P<0.05).The BCVA was stable following cataract surgery.Conclusion: Age-related cataract patients who underwent cataract surgery of phacoemulsification and aspiration with intraocular lens implantation,whose vessel length density,perfusion density and central macular thickness increased,while the foveal avascular zone decreased compared with the preoperation.These changes gradually recovered as time went by,but central macular thickness did not recover over time.