Change of macular retinal nerve fiber layer thickness after phacoemulsification for patients with high myopia and diabetes cataract
Objective To investigate the changes of macular retinal nerve fiber layer thickness(mRNFLT)in patients with high myopia combined with diabetic cataract after phacoemulsification.Methods A total of 48 patients who underwent phacoemulsification and IOL implantation were selected from January 2021 to December 2022 at The Central Hospital of Shaoyang,28 eyes in 24 cases of high mgipia and diabetic cataract as an observation group(IOLMaster 500 measured their axial length,AL>26 mm~≤28 mm)and 28 eyes were observed in other 24 cases of diabetic cataract as a control group.The mRNFLT was measured before cataract phacoemulsification,1 day after surgery,1 week after surgery,and 1 month after surgery to evaluate the changes in mRNFLT between the 2 groups.Results The mRNFLT of macular area was different between the 2 groups at different time points(preoperative F=0.30,P<0.001,postoperative 1 day F=3.15,P<0.001,postoperative 1 week F=0.31,P<0.001,postoperative 1 month F=2.56,P<0.001).The mRNFLT of macula area changed in each group over time(observation group F=20.296,P=0.001).The mRNFLT in the macula area of the observation group was lower than that of the control group,and the relative therapeutic effect on the observation group was also better.There was a significant difference in the trends of mRNFLT between the control group and the observation group(F=243.491,P=0.001).Conclusion The risk of macular edema is relatively low in patients with high myopia combined with diabetic cataract,while the risk of macular edema significantly increases in patients with diabetic cataract,most obviously one month after surgery.
diabetic cataracthigh myopiaphacoemulsification and intraocular lens implantationretinal thickness