Analysis on risk factors for retinal detachment occurrence in fellow eye of patients with monocular rhegmatogenous retinal detachment
Objective To analyze the risk factors for the occurrence of rhegmatogenous retinal detach-ment(RRD)in the fellow eye of the patients with monocular RRD.Methods A single-center retrospective cohort study was conducted.The information such as the gender,age,laterality,bilateral best corrected visual acuity(BCVA),bilateral refractive error,whether the fellow eye implanting an intraocular lens,and location distribution of retinal tears or degenerative areas(such as lattice,cystic,and snail track degeneration)in the fellow eye of 331 patients with unilateral RRD surgery in this hospital from January 2018 to December 2020 was analyzed.The patients were followed up for one year,during this period,the prophylactic laser photocoag-ulation was performed if retinal tears or degenerative areas occurred in the fellow eye.The risk factors for RRD occurrence in the fellow eye were analyzed by the logistic regression.The Kappa value was calculated.The location distribution of retinal tears or degenerative areas in the affected eye and the fellow eye conducted the consistency analysis.Results The influencing factors for RRD occurrence of the fellow eye in the two groups mainly included the age,preoperative BCVA and preoperative refractive error(P＜0.05).Logistic re-gression analysis revealed that the age 40 to＜60 years old(OR=6.906,P＜0.001),preoperative BCVA＜0.05(OR=3.015,P＜0.001)and refractive error-3.00 to＜-6.00 D(OR=5.511,P＜0.001)were sig-nificant independent risk factors for the occurrence of retinal tears or degenerative areas in the fellow eye.The age＜40 years old(OR=0.101,P＜0.001)and refractive error+0.50 D-＜-0.50 D(OR=0.160,P=0.001)were the protective factors.The numbers of cases in the fellow eye with retinal tears or degenerative areas in the 4 quadrants were 59,14,27,and 8,respectively.In the affected eye,the numbers of cases with reti-nal tears or degenerative areas in the same quadrants were 43,6,10,and 3,respectively.The Kappa value was 0.296,P＜0.001.All patients with RRD or lattice degeneration in the fellow eye received prophylactic laser photocoagulation,and no further retinal detachment occurred during the one-year follow-up period.Conclusion Ai-ming at the patients with unilateral RRD,the contralateral eye should be examined in detail,especially in mid-dle-aged and elderly patients with BCVA＜0.50 and diopter-3.00-＜-6.00 D,focusing on the retinal quadrant of the contralateral eye that is the same as the affected eye hole,and the incidence of contralateral RRD should be effectively reduced through regular and comprehensive eye examination.
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