Transepithelial photorefractive keratectomy for myopia:effect of age and keratometric values  

作　　者：Amanda Nur Shinta Pertiwi Indra Tri Mahayana Agus Supartoto Wasisdi Goenawan Suhardjo 

机构地区：[1]Department of Ophthalmology,Faculty of Medicine,Public Health and Nursing,Universitas Gadjah Mada-Sardjito Eye Center,Dr.Sardjito General Hospital,Yogyakarta 55284,Indonesia [2]Dr.Yap Eye Hospital,Yogyakarta 55232,Indonesia

出　　处：《International Journal of Ophthalmology(English edition)》2021年第5期744-749,共6页国际眼科杂志（英文版）

摘　　要：AIM:To investigate demographic and preoperative factors increasing the risk of ametropia following transepithelial photorefractive keratectomy(trans PRK)in myopia and myopic astigmatism.METHODS:This retrospective cohort study included myopic eyes(-0.50 to-8.75 D)with or without astigmatism(up to 3.50 D)enrolled at Dr.Yap Eye Hospital Yogyakarta.Trans PRK was performed using Technolaz 217 z100 excimer laser.Subjects were clustered into ametropia and emmetropia group based on uncorrected distance visual acuities(UDVA)3 mo post-operatively.Multiple preoperative and intraoperative parameters were analyzed using Logistic regression to obtain their effect on ametropia risk following trans PRK.RESULTS:A total of 140 eyes of 87 consecutive subjects were studied.Prevalence of ametropia following trans PRK was 20(14.29%)eyes.Subjects in ametropia group were significantly older than the emmetropia group(31.80±14.23 vs 18.88±2.41,respectively;P<0.001).Bivariate Logistic regression analysis showed that older age(OR=1.23),higher preoperative spherical equivalent(>-6 D;OR=12.78),steeper anterior keratometric readings(Kmax>45 D and mean K>44 D;OR=4.28 and 4.35,respectively)increased the risk of ametropia following trans PRK.Adjusted multivariate Logistic regression analysis showed that age was the strongest predictor for the incidence of ametropia following trans PRK.Complications of trans PRK were overcorrection,suspected posterior keratoectasia and accommodation insuffiency.CONCLUSION:Older age can be the strongest factor for increasing ametropia risk following trans PRK.Cut-off points of Kmax and mean K at 45 and 44 D respectively are proposed as the predictors for ametropia following trans PRK.

关 键 词：transepithelial photorefractive keratectomy refractive surgery EMMETROPIZATION OVERCORRECTION 

分 类 号：R779.6[医药卫生—眼科]