Assessing a modified fitting approach for improved multifocal contact lens fitting
Assessing a modified fitting approach for improved multifocal contact lens fitting
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DOI：
10.1016/j.clae.2019.06.006
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发表时间：
2019-10-01
影响因子：
3.2
通讯作者：
Nixon, Laura
中科院分区：
文献类型：
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作者：
Merchea, Mohinder;Evans, David;Nixon, Laura
目的：比较改良的多焦点(MF)隐形眼镜配戴指南和以前的配戴指南在当前需要矫正老花的软性隐形眼镜(CL)佩戴者中的有效性。受试者掩蔽研究评估了改良指南相对于以前指南的优越性，这取决于筛查/试镜时成功匹配每只眼睛所需的MFCL的数量。结果：共有183名老花眼受试者被随机分成两组，分别使用改良的(n=99)和以前的(n=84)MFCL适配指南进行适配。在筛查/配戴访问中，使用改进的配戴指南和以前的配戴指南，每只眼睛配戴的平均+/-SD镜片数量分别为1.2+/-0.5和1.4+/-0.5。最小二乘平均差(0.2)满足修改后的拟合导轨优越性的预定标准。在筛查/配戴访问中，82.8%(164/108)和65.1%(105/166)的老花眼分别在改良和原指南下配戴1副中频镜片，98.0%(194/198)的眼在改良导镜下配戴1~2副中频镜片。与以前的配戴指南相比，眼科护理从业者对改装后的配戴容易程度的评分最高(63.6%[7/11]比33.3%[3/9])。结论：改良式配戴指南在减少每个老花眼患者成功配戴所需的MF镜片数量方面具有优势。
Purpose: : To compare the effectiveness of a modified and previous fitting guide for multifocal (MF) contact lenses that share a common optical design, lotrafilcon B, nelfilcon A, and delefilcon A, in current soft contact lens (CL) wearers needing presbyopia correction.Methods: : This international multicenter, prospective, randomized, subject-masked study assessed the superiority of the modified guide relative to the previous guide as determined by the number of MF CLs needed to successfully fit each eye at the screening/fitting visit.Results: : A total of 183 presbyopic subjects were randomized to fitting using the modified (n = 99) and previous (n = 84) MF CL fitting guides. The mean +/- SD numbers of lenses required to fit each eye at the screening/fitting visit using the modified and previous fitting guides were 1.2 +/- 0.5 and 1.4 +/- 0.5, respectively. The least-squares mean difference (0.2) met predetermined criteria for superiority of the modified fitting guide. At the screening/fitting visit, 82.8% (164/108) and 65.1% (105/166) of presbyopic eyes were fit with one pair of MF lenses using the modified and previous guides, respectively, and 98.0% (194/198) of eyes were fit with 1-2 pairs of MF lenses using the modified guide. A higher percentage of eye care practitioners gave the highest ratings for ease of fit for the modified than for the previous fitting guide (63.6% [7/11] vs 33.3% [3/9]).Conclusions: : The modified fitting guide was superior at reducing the number of MF lenses required to successfully fit each presbyopic patient.