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corneal topographies
相关语句
  角膜地形图
     Results:After surgery the corneal topographies were mainly smooth the rate was 72.6% after 6 months;
     结果:术后角膜地形图以平滑型居多,6个月时为72.6%;
短句来源
     In high myopic team the different shapes of the corneal topographies were irrelavent to the best corrected visual acuity(BCVA)(P>0.05).
     在近视高度组,角膜地形图形态不同,而其最佳矫正视力无显著性差异(P>0.05);
短句来源
     Methods:After lasik surgery 63cases(124eyes),who had whole corneal topography date were choosed; and the changes of corneal topographies were analyzed at 3 months and 6 months after surgery.
     方法:选择LASIK术后角膜地形图资料完整的患者63例124只眼,分析术后3个月及6个月时的角膜地形图变化。
短句来源
     Methods 64patients (125eyes) that had whole corneal topography date, were included, and the changes of corneal topographies and visual acuity were analyzed 2 week . 1.3.6 months after surgery.
     方法 选择PRK术后角膜地形图资料完整的患者64例(125眼),分析术后2wk、1mo、3mo、6mo角膜地形图及视力的变化。
短句来源
     To investigate the changes in corneal topography of contact lens wearers after removal of contact lens,these corneal topographies were studied regularly.
     通过对戴角膜接触镜患者停镜后进行定期角膜地形图观察,发现戴角膜接触镜可引起角膜变形,如中心区不规则散光、缺乏正常角膜的由中心向周围逐渐变扁平和丧失辐射性对称。
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  “corneal topographies”译为未确定词的双语例句
     Methods:36 patients (72eyes),who had whole corneal topography date,were inchuded,and the changes of corneal topographies were analyzed before surgery and 1 day,1 week,1,3,6 months after surgery.
     方法 :选择 L ASIK术后地形图资料完整的患者 36例 (72只眼 ) ,分析术前、术后 1天、 1周、 1个月、 3个月及 6个月地形图变化。
短句来源
     Corneal topographies were performed before surgery and l,3 months after LASIK.
     术后用0.3%氟嗪酸,0.1%FML滴眼10天。
短句来源
  相似匹配句对
     Corneal topographies were performed before surgery and l,3 months after LASIK.
     术后用0.3%氟嗪酸,0.1%FML滴眼10天。
短句来源
     Corneal endothelial transplantation
     角膜内皮细胞移植
短句来源
     Angiopoietins and corneal neovascularization
     血管生成素与眼部新生血管的关系
短句来源
     Therefore,wear-time of soft lens and the comparison of repeated corneal topographies should be concerned before surgery for refraction.
     因此对戴角膜接触镜的患者进行屈光手术前 ,不仅要考虑停戴时间的长短 ,还应进行角膜地形图的多次对比分析
短句来源
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To investigate the changes in corneal topography of contact lens wearers after removal of contact lens,these corneal topographies were studied regularly. We found that wearing contact lens could induce corneal warpage,such as irregular astigmatism, loss of radial symmetry, and abscence of the normal progressive flattening from the center to the periphery of the cornea.The mean time which was necessary for the stable topography to be achieved after removal of contact lens was approximately 4 weeks...

To investigate the changes in corneal topography of contact lens wearers after removal of contact lens,these corneal topographies were studied regularly. We found that wearing contact lens could induce corneal warpage,such as irregular astigmatism, loss of radial symmetry, and abscence of the normal progressive flattening from the center to the periphery of the cornea.The mean time which was necessary for the stable topography to be achieved after removal of contact lens was approximately 4 weeks (2-8 weeks). Therefore,we suggest that contact lens wearing eyes with abnormal topographies be excluded from being performed the refractive surgery.

通过对戴角膜接触镜患者停镜后进行定期角膜地形图观察,发现戴角膜接触镜可引起角膜变形,如中心区不规则散光、缺乏正常角膜的由中心向周围逐渐变扁平和丧失辐射性对称。停镜后角膜恢复正常形态的时间为2~8周,平均为4.07±1.76周。最长时间为12周。停镜2周左右角膜变化较明显。提示屈光性角膜手术前,对戴角膜接触镜患者要定期检查角膜地形图,直至角膜形态恢复正常,才可进行手术治疗。

To investigate the relationship between muscular asthenopia after excimer laser photorefractivc keratectomy (PRK) and eccentric ablation,16 eyes of 8 myopia cases with muscular asthenopia corrected by subjectively accepted triple prism after PRK and with visiual acuity of 0 8 or over were followed up 6 14 months.On the basis of data provided by preoperative and postoperative corneal topographies and their difference,we calculated the ...

To investigate the relationship between muscular asthenopia after excimer laser photorefractivc keratectomy (PRK) and eccentric ablation,16 eyes of 8 myopia cases with muscular asthenopia corrected by subjectively accepted triple prism after PRK and with visiual acuity of 0 8 or over were followed up 6 14 months.On the basis of data provided by preoperative and postoperative corneal topographies and their difference,we calculated the real corrected corneal diopter(D) with Holladay formula and then measure the ablation eccentricity (h)and its direction.According to the formula δ≈Dh,the prism effective value (δ)causcd by the eccentric ablation was computed and compared with subjectively accepted triple prism.The subjectively accepted prism were similar to the value calculated with the formlua.Their mean difference was 0 10 △±0 25 △.The subjectively accepted prism was in the direction of the ablation deviation.Conclusion was drawn that eccentric ablation was the chief cause of muscular asthenopia after PRK,and the effective value of triple prism caused by eccentric ablation may be estimated by formula δ≈Dh.We should pay more attention to the diagnosis,treatment and prevention of muscular asthenopia after PRK.

目的:探讨准分子激光角膜切削术(photorefractivekeratectomy,PRK)后肌性视疲劳与切削偏心的关系。方法:对8例16只眼近视性屈光不正行PRK后随访6~14个月,视力均在0.8以上且主观接受棱镜矫正的肌性视疲劳者,根据术后与术前的角膜地形图及其相减图的数据,按Holaday法计算角膜实矫屈光度D,检测偏离瞳孔中心的切削偏心量h(以mm为单位)及方向。用公式(棱镜度)δ≈Dh计算切削偏心所致棱镜效应值并与主观接受矫正的棱镜相比较。结果:主观接受与按公式计算的棱镜度相近,两者差值平均为0.10△±0.25△,主观接受的棱镜基底朝向均与偏心方向一致。结论:切削偏心为PRK后肌性视疲劳的主要原因,偏心所致棱镜效应可用δ≈Dh估算;应重视PRK后肌性视疲劳的诊断、治疗和预防。

Abstract Objective:To analyze the changes of corneal topography after laser in situ keratomileusis(LASIK).Methods:This prospective study comprised 196 eyes(137patients)l month after LASIK and 70 eyes(48 patients)3 months after LASIK.Corneal topographies were performed before surgery and l,3 months after LASIK.Results:There was a statistically significant increase in mean SRI and SAI value 1 month after LASIK,and there is no significant...

Abstract Objective:To analyze the changes of corneal topography after laser in situ keratomileusis(LASIK).Methods:This prospective study comprised 196 eyes(137patients)l month after LASIK and 70 eyes(48 patients)3 months after LASIK.Corneal topographies were performed before surgery and l,3 months after LASIK.Results:There was a statistically significant increase in mean SRI and SAI value 1 month after LASIK,and there is no significant change 3 months later.According to the topography,there were much more homogeneous patterns after LASIK than PRK.The percent of homogeneous pattern is 89 8% one month after LASIK and 93 2% three months after LASIK.The mean decentration was 0 67±0 48mm(SD),ranging from 0 to 2 24mm.A preponderance had decentrations“to the nasal”,especially the left eyes.Conclusion:LASIK combins the accuracy of the excimer laser to remove tissue and the ability of the microkeratome to access the inner sroma and preserve the Bowmans membrane,having rather regular ablation shape,but it still has the problem of decentration ablation.Topography provides a subjective method to evaluate the result of LASIK.

为分析准分子激光原位角膜磨镶术后角膜地形图的动态变化,随访LASIK后1月病人共137例(196眼),术后3月48例(70眼)。采用随机扫描式消融角膜基质。术后用0.3%氟嗪酸,0.1%FML滴眼10天。记录术前、术后1个月、3个月的视力,屈光度数,角膜地形图。结果:术后1月角膜表面规则系数、角膜表面非对称系数明显大于术前,术后3月无明显改善。术后1月切削形态中平滑型占89.8%,其他形态占10.2%。切削形态随时间延长逐步变规则。术后切削中心平均偏心0.67±0.48mm(0~2.24mm),偏心距离在1mm以内对最佳矫正视力影响不大,偏心方向以鼻侧居多。结论:LASIK手术由于保持了角膜上皮层及前弹力层,术后角膜及切削形态较规则,但仍然存在偏心切削的问题。角膜地形图为临床评估LASIK效果提供了客观依据。

 
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