HL-K硬性透气性角膜接触镜在圆锥角膜矫治中的应用

发布时间：2018-11-21 17:34

【摘要】：目的探讨HL-K硬性透气性角膜接触镜(rigid gas permeable contact lens,RG-PCL)在圆锥角膜矫治中的有效性并分析其原因。方法回顾性分析圆锥角膜患者验配HL-K RGPCL 86例(143眼),按相关标准分为轻度组(18眼)、中度组(73眼)、重度组(34眼)和极重度组(18眼)。评估镜片配适状态,比较各组内框架眼镜和HL-K RGPCL最佳矫正视力,并根据角膜曲率等因素分析各组内验配指导性指标与HL-K RGPCL基弧的关联。结果各组患者最佳矫正视力比较,轻度组(P=0.004)、中度组(P0.001)、重度组(P0.001)和极重度组(P0.001)HL-K RGPCL最佳矫正视力均高于框架眼镜。框架眼镜等效球镜度低于中度组(P=0.043)和重度组(P=0.006)HL-K RGPCL屈光度。HL-K RGPCL基弧K值为(50.52±5.64)D,HL-K RGPCL基弧与角膜曲率的多项参数具有相关性,其中轻度组HL-K RGPCL基弧与角膜曲率陡K值具有正相关性(P0.001),中、重和极重度组HL-K RGPCL基弧与角膜曲率平均K值及起始试戴基弧Rm-0.2mm相对应K值正相关性最强:中度组(r=0.798,P0.001;r=0.798,P0.001),重度组(r=0.745,P0.001;r=0.745,P0.001),极重度组(r=0.616,P=0.007;r=0.617,P=0.006)。结论圆锥角膜患者配戴HL-K RGPCL可以获得满意的矫正视力,依据病变程度通过配适评估对相应指标动态调整以确定HL-K RGPCL基弧的过程,有利于提高长期配戴镜片安全性,提高验配效率。
[Abstract]:Objective to investigate the effectiveness of HL-K rigid breathable contact lens (rigid gas permeable contact lens,RG-PCL) in the correction of keratoconus. Methods 86 cases (143 eyes) of keratoconus were retrospectively analyzed and divided into mild group (18 eyes), moderate group (73 eyes), severe group (34 eyes) and extremely severe group (18 eyes). To evaluate the state of lens matching, to compare the best corrected visual acuity of frame glasses and HL-K RGPCL in each group, and to analyze the correlation between the guide index of internal matching and the basic arc of HL-K RGPCL according to the corneal curvature and other factors. Results the best corrected visual acuity (BCVA) in the mild group (P0. 004), the moderate group (P0. 001), the severe group (P0. 001) and the very severe group (P0. 001) were higher than those in the frame glasses. The equivalent spherical lens degree of frame glasses was lower than that of moderate group (P0. 043) and severe group (P0. 006) HL-K RGPCL refraction. The K value of HL-K RGPCL base arc was (50. 52 卤5. 64) DX HL-K RGPCL basal arc and many parameters of corneal curvature were correlated. In the mild group, there was a positive correlation between the basal arc of HL-K RGPCL and the steep K value of corneal curvature (P0. 001). The correlation between HL-K RGPCL basal arc and corneal curvature average K value and Rm-0.2mm value of initial test base arc was the strongest in the heavy and extremely severe groups: in the moderate group (r = 0.798U, P 0.001); (P 0.001), severe group (r = 0.745P 0.001), very severe group (n = 0.007), very severe group (n = 0.007, P ~ (0.006), P ~ (0.001), P _ (0.798), P _ (0.001). Conclusion the patients with keratoconus wearing HL-K RGPCL can obtain satisfactory corrected visual acuity. According to the degree of lesion, the process of determining the basic arc of HL-K RGPCL can be determined by adjusting the corresponding indexes dynamically according to the degree of lesion, which is helpful to improve the safety of wearing lens for a long time. Improve the efficiency of matching.
【作者单位】：中山大学中山眼科中心海南眼科医院(海南省眼科医院) 海南省眼科学重点实验室;
【基金】：海南省自然科学基金面上项目资助(编号:20168336) 海南省卫生计生行业科研项目(编号:15A200103)~~
【分类号】：R772.2

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