多区正向光学离焦镜片对近视儿童视觉质量的影响

目的：探讨近视儿童配戴多区正向光学离焦镜片后的主观视觉质量，并与角膜塑形镜、单焦点镜 片相比较。方法：前瞻性临床研究。收集2020年7—10月在南宁爱尔眼科医院视光中心配戴多区 正向光学离焦镜片31例（31眼）（DIMS组）、OK镜32例（32眼）（OK镜组）、单焦点镜片30例（30眼） （SV组）共93例（93眼）近视患者。配戴矫正镜片1个月后，采用Oculus视功能检查仪对3组进行全 程视力、对比敏感度、中间视觉、眩光、立体视等主观视觉质量检查。数据采用单因素方差分析、 卡方检验、秩和检验、Spearman相关性分析等方法进行分析。结果：3组患儿戴镜后近、远视力相 对于基线期变化值的差异均无统计学意义。在近、远立体视锐度当中3组差异无统计学意义，3组 在600″~200″立体视视锐度的人数分别都是最少的。3 组之间的对比敏感度差异有统计学意义 （F=17.96, P<0.001），合格例数最多的DIMS组有20例（65%）被检者对比敏感度≤15%。DIMS组在 有无眩光情况下，对比度等级(1:2.7、1:2.0)的通过率均高于OK镜组、SV组，且1:2.0对比度等级更 为明显，差异均有统计学意义（均P<0.001）。立体视锐度与年龄呈负相关（r=-0.30, P=0.008），与 屈光度数无相关性。眩光与对比敏感度间呈正相关（r=0.64, P<0.001），与性别、年龄、屈光度分析 均无相关性。结论：多区正向光学离焦镜片相对于角膜塑形镜及单焦点镜片而言，可提供更好的主 观视觉质量，有好的舒适性和安全性。

Effect of the Multiple Focus Segment Lenses on the Visual Quality of Myopic Children

Objective: To study the subjective visual quality of myopic children wearing the focus incorporated multiple segment (DIMS) lenses, and compare them to orthokeratology lenses (OK) and single vision (SV) spectacle lenses. Methods: In this prospective clinical research, a total of 93 myopic patients were recruited from July to October 2020 in Nanning Aier Eye Hospital. Thirty-one children (31 eyes) wore multiple focus segment lenses, 32 children (32 eyes) wore orthokeratology lenses and 30 children (30 eyes) wore single vision lenses prescribed in the Optometry Center. After wearing corrective lenses for 1 month, the Oculus binocular function tester was used to check the three groups of eye parameters such as full vision, contrast sensitivity, glare, mesopic functions and stereopsis in the 3 groups. Data were analyzedby one-way analysis of variance, Chi-square test, rank sum test, and Spearman correlation. Results: There was no statistically significant difference in the near and far visual acuity of the three groups of patients from the baseline period to one month after wearing the glasses. There was no significant difference in near and far stereoscopic acuity among the three groups, and the number of children with 600 " -200" stereoscopic acuity in the three groups showed the least differences. Contrast sensitivity among the three groups was statistically significant (F=17.96, P<0.001). The MFS group had the largest number of qualified cases with 20 (65%) subjects with a contrast sensitivity of ≤ 15%. With or without glare, the pass rate for the contrast levels (1:2.7, 1:2.0) of the MFS group were higher than that of both the OK lens group and SV group. The contrast level of 1:2.0 showed a more obvious difference. The difference was statistically significant (P<0.001). Stereoscopic acuity was negatively correlated with age (r=-0.30, P=0.008), but not correlated with refractive power. There was a strong correlation between glare and contrast sensitivity (r=0.64, P<0.001), and no correlation with gender, age, or refraction analysis. Conclusion: Compared to orthokeratology and single vision spectacle lenses, the multiple focus segment lens can provide better subjective vision quality, good comfort and safety