AIM:To report the safety,efficacy,and accuracy of small-incision lenticule extraction(SMILE)or femtosecondassisted laser in situ keratomileusis(FS-LASIK)for the correction of myopia or myopic astigmatism in patients w...AIM:To report the safety,efficacy,and accuracy of small-incision lenticule extraction(SMILE)or femtosecondassisted laser in situ keratomileusis(FS-LASIK)for the correction of myopia or myopic astigmatism in patients with deep corneal opacity denoted by anterior segment optical coherence tomography(AS-OCT).METHODS:Four patients with monocular corneal opacity(3 due to mechanical injury,1 due to a firecracker wound)were recruited and treated with refractive surgery(3 for SMILE,1 for FS-LASIK combined with limbal relaxing incision(LRI).Preoperative ocular manifestations,surgical details,postoperative visual outcomes,corneal opacity parameters,and corneal topography were analyzed.RESULTS:Preoperatively,spherical diopter ranged from-3.0 D to-4.75 D with cylinder ranging from-0.75 to-5.0 D,and corrected distance visual acuity(CDVA)ranging from 20/25 to 20/20.One eye’s corneal opacity was located in the central zone and three were in the mid-peripheral optical zone.Three patients underwent uneventful SMILE in both eyes,whilst one patient underwent FS-LASIK for high astigmatism in both eyes and LRI in the right eye.CDVA of the eye with corneal opacity ranged from 20/22to 20/20 one to six weeks postoperatively.Two patients achieved better CDVA and no patients lost Snellen lines.The postoperative diopter was within±0.75 D for all eyes.Significant edema existed above the corneal opacity in one eye and dissipated soon.No eccentric corneal topography or morphological anomaly of the corneal cap or flap was observed.CONCLUSION:The cases demonstrate that SMILE or FS-LASIK is safe and effective to treat myopic astigmatism combined with deep corneal opacity lesions after comprehensive preoperative evaluation and appropriate candidate selection.FS-LASIK combined with LRI is also sufficient for correcting high astigmatism due to corneal scarring.展开更多
目的通过观察胸部数字化X线摄影软拷贝图像(copy image of chest digital radiography,DRSC)的读片效果,并与胶片-增感屏高千伏X线胸片(high kV film-screen chest radiography,FSRHkV)对照分析,探讨尘肺诊断DRSC读片的可行性,为建立尘...目的通过观察胸部数字化X线摄影软拷贝图像(copy image of chest digital radiography,DRSC)的读片效果,并与胶片-增感屏高千伏X线胸片(high kV film-screen chest radiography,FSRHkV)对照分析,探讨尘肺诊断DRSC读片的可行性,为建立尘肺诊断的区域信息网络平台提供依据。方法2019年6月,收集2017年10月至2019年8月云南省第三人民医院收治的从事铜矿或铅锌矿开采并接触矽尘的119名矿工作为调查对象。由三名有经验的诊断医师各自独立对每个病例的DRSC和FSRHkV胸部X线表现分别作出判定和诊断,以多数医师认同的判定和诊断作为最终判定结果。以肺部主要小阴影形态、总体密集度、分布范围、小阴影集聚和大阴影,以及诊断分期为观察指标,分析两种成像方式一致性。结果调查对象中男性118例,女性1例,平均年龄46.21岁。平均接尘时间7.38年。113例两种成像方式的肺部X线表现以p、q、r圆形小阴影为主,网状不规则影不明显,仅观察到1例FSRHkV判定p影DRSC判定q影,两者符合率99.12%(112/113)。另外6例均观察到巨大阴影。无尘肺和壹期判定符合率为95.51%(4/89);贰期和叁期判定均未出现差异(30/30),无统计学意义(P>0.05)。结论以肺部圆形小阴影为主的矽肺X线表现,DRSC可以用于诊断分期读片。展开更多
基金Supported by the Science and Technology Program of Zhejiang Province(No.2019C03046)the Natural Science Foundation of Zhejiang Province under Grant(No.LQ20H120007)。
文摘AIM:To report the safety,efficacy,and accuracy of small-incision lenticule extraction(SMILE)or femtosecondassisted laser in situ keratomileusis(FS-LASIK)for the correction of myopia or myopic astigmatism in patients with deep corneal opacity denoted by anterior segment optical coherence tomography(AS-OCT).METHODS:Four patients with monocular corneal opacity(3 due to mechanical injury,1 due to a firecracker wound)were recruited and treated with refractive surgery(3 for SMILE,1 for FS-LASIK combined with limbal relaxing incision(LRI).Preoperative ocular manifestations,surgical details,postoperative visual outcomes,corneal opacity parameters,and corneal topography were analyzed.RESULTS:Preoperatively,spherical diopter ranged from-3.0 D to-4.75 D with cylinder ranging from-0.75 to-5.0 D,and corrected distance visual acuity(CDVA)ranging from 20/25 to 20/20.One eye’s corneal opacity was located in the central zone and three were in the mid-peripheral optical zone.Three patients underwent uneventful SMILE in both eyes,whilst one patient underwent FS-LASIK for high astigmatism in both eyes and LRI in the right eye.CDVA of the eye with corneal opacity ranged from 20/22to 20/20 one to six weeks postoperatively.Two patients achieved better CDVA and no patients lost Snellen lines.The postoperative diopter was within±0.75 D for all eyes.Significant edema existed above the corneal opacity in one eye and dissipated soon.No eccentric corneal topography or morphological anomaly of the corneal cap or flap was observed.CONCLUSION:The cases demonstrate that SMILE or FS-LASIK is safe and effective to treat myopic astigmatism combined with deep corneal opacity lesions after comprehensive preoperative evaluation and appropriate candidate selection.FS-LASIK combined with LRI is also sufficient for correcting high astigmatism due to corneal scarring.
文摘目的通过观察胸部数字化X线摄影软拷贝图像(copy image of chest digital radiography,DRSC)的读片效果,并与胶片-增感屏高千伏X线胸片(high kV film-screen chest radiography,FSRHkV)对照分析,探讨尘肺诊断DRSC读片的可行性,为建立尘肺诊断的区域信息网络平台提供依据。方法2019年6月,收集2017年10月至2019年8月云南省第三人民医院收治的从事铜矿或铅锌矿开采并接触矽尘的119名矿工作为调查对象。由三名有经验的诊断医师各自独立对每个病例的DRSC和FSRHkV胸部X线表现分别作出判定和诊断,以多数医师认同的判定和诊断作为最终判定结果。以肺部主要小阴影形态、总体密集度、分布范围、小阴影集聚和大阴影,以及诊断分期为观察指标,分析两种成像方式一致性。结果调查对象中男性118例,女性1例,平均年龄46.21岁。平均接尘时间7.38年。113例两种成像方式的肺部X线表现以p、q、r圆形小阴影为主,网状不规则影不明显,仅观察到1例FSRHkV判定p影DRSC判定q影,两者符合率99.12%(112/113)。另外6例均观察到巨大阴影。无尘肺和壹期判定符合率为95.51%(4/89);贰期和叁期判定均未出现差异(30/30),无统计学意义(P>0.05)。结论以肺部圆形小阴影为主的矽肺X线表现,DRSC可以用于诊断分期读片。
