配戴一年以上的夜用角膜塑形镜停戴后角膜参数的变化

发布时间：2018-03-22 08:18

本文选题：近视　切入点：角膜塑形镜　出处：《眼科》2016年05期 　论文类型：期刊论文

【摘要】：目的观察夜用角膜塑形镜停戴后角膜参数的变化。设计回顾性病例系列。研究对象2010年10月至2013年3月在北京新力眼科验配角膜塑形镜并坚持戴镜且欲停戴重新验配的近视患者26例(49眼)。方法采用Pentacam眼前节分析仪测量角膜曲率、角膜散光及角膜厚度,观察配戴前、连续戴镜12个月、停戴3~4周后各指标的变化。主要指标角膜平坦轴曲率、角膜陡峭轴曲率、角膜散光、角膜厚度。结果角膜平坦轴曲率配戴前、连续戴镜12个月、停戴3~4周后分别为(42.32±1.87)D、(40.18±1.83)D、(41.97±1.86)D,角膜陡峭轴曲率分别为(43.46±1.76)D、(41.46±1.74)D、(43.30±1.90)D,两指标配戴前与停戴后比较均无统计学差异(P=0.534,0.777)。各时间点角膜散光比较无统计学差异。戴镜中角膜厚度略变薄,配戴前及连续戴镜12个月分别为(546.23±24.33)μm、(537.18±27.89)μm,停戴后逐渐恢复至(541.23±22.25)μm,各时间点比较均无统计学差异。塑形效果稳定后每矫正-1.00 D屈光度实际下降K值为(0.52±0.18)D,实际角膜厚度变薄为(2.35±2.23)μm。停戴3~4周后K值恢复程度为(86±15)%,角膜厚度恢复程度为(68±45)%。结论停戴夜用角膜塑形镜3~4周后各角膜参数恢复至接近戴镜前水平。
[Abstract]:Objective to observe the changes of corneal parameters after the suspension of overnight keratoplasty. A retrospective series of cases was designed. The subjects of the study were selected from October 2010 to March 2013 in Beijing Xinli ophthalmologic examination and insisted on wearing glasses and wanted to stop wearing them again. Methods Corneal curvature was measured by Pentacam anterior segment analyzer in 26 cases (49 eyes) of myopia. The changes of corneal astigmatism and corneal thickness were observed after 12 months of continuous wear of lens and 3 weeks after suspension. The main outcome measures were flat axis curvature, steep axis curvature, astigmatism, corneal astigmatism, corneal astigmatism, corneal astigmatism, corneal astigmatism, corneal astigmatism, corneal astigmatism and corneal astigmatism. Results before wearing flat axis curvature of cornea, the lens was worn continuously for 12 months. 42.32 卤1.87 DU 40.18 卤1.83DU 41.97 卤1.86 D, 43.46 卤1.76 DX 43.46 卤1.74 DU 43.30 卤1.90D, respectively. There was no significant difference between the two indexes before and after treatment. There was no significant difference in corneal astigmatism at each time point. Before wearing and after 12 months of continuous wear, the values were 546.23 卤24.33 渭 m and 537.18 卤27.89 渭 m, respectively, and gradually recovered to 541.23 卤22.25 渭 m. There was no statistical difference between each time point. The K value of actual diopter decreased by 0.52 卤0.18d per corrected -1.00 D and the actual corneal thickness thinned after the plastic effect was stable. The recovery degree of K value and corneal thickness were 86 卤15 and 68 卤45 渭 m respectively after 3 weeks. Conclusion the corneal parameters recovered to close to the pre-mirror level after 34 weeks of using the corneal plastic lens for the rest of the night. [WT5 "HZ] [WT5" BZ] [WT5 "BZ] [WT5" BZ] [WT5 "BZ] [WT5" BZ] [WT5 "BZ] [WT5" BZ]
【作者单位】：北京新力眼科;
【分类号】：R778.11

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