School of Optometry and Vision Science, University of Bradford, Bradford, UK; Wolfson Centre for Applied Health Research, Bradford Teaching Hospitals, Bradford, UK.
School of Optometry and Vision Sciences, Cardiff University, Cardiff, UK.
Cont Lens Anterior Eye. 2022 Apr;45(2):101426. doi: 10.1016/j.clae.2021.02.012. Epub 2021 Feb 19.
A range of myopia management (MM) contact lenses are becoming available to practitioners. These lenses are designed to slow myopia progression and axial elongation. This study explored the initial experience of participants wearing daily disposable MM contact lenses to investigate established factors previously associated with successful lens wear.
This was a prospective, double-masked, crossover study. Twenty participants aged 18-30 years old were assigned to wear two daily disposable MM lenses in a randomised order. Visual acuity, contrast sensitivity, and amplitude/lag of accommodation were assessed at baseline, post-insertion, and after 2 and 6 h of lens wear. Self-reported lens comfort and vision quality were recorded at the same timepoints, and at 10 h post-insertion. Pairwise comparisons were performed between the two lenses at each timepoint, as well as assessing changes throughout wear. The relationship of the measured parameters to overall lens satisfaction was also assessed.
There were no significant differences between the two MM lenses at any timepoint for any of the participant-reported parameters, including overall satisfaction. A small difference in visual acuity was noted at 6 h post-insertion, although this is unlikely to be clinically significant. Comfort decreased throughout the day, most notably at 10 h post-insertion. A moderate positive correlation was observed between participant-reported visual quality and overall satisfaction. A similar pattern was seen for comfort and overall satisfaction. Self-reported vision quality and measured visual acuity were poorly correlated, highlighting the benefit of subjectively assessing the quality of vision with these lenses.
The participants demonstrated comparable measures across a range of measures between the two MM lenses. Notably, half of the participants demonstrated a clear lens preference, although the preferred lens varied between individuals. Candidates for MM may benefit from trialling more than one MM lens design, to maximise initial wearing satisfaction.
一系列近视管理（MM）隐形眼镜开始面向医生。这些镜片旨在减缓近视进展和眼轴伸长。本研究通过探索参与者佩戴日抛 MM 隐形眼镜的初步体验，调查先前与成功镜片佩戴相关的既定因素。
这是一项前瞻性、双盲、交叉研究。20 名 18-30 岁的参与者被随机分配佩戴两种日抛 MM 隐形眼镜。在基线、插入后以及佩戴 2 小时和 6 小时后评估视力、对比敏感度和调节幅度/滞后。在相同时间点记录自我报告的镜片舒适度和视觉质量，并在插入后 10 小时记录。在每个时间点比较两种隐形眼镜之间的差异，以及评估整个佩戴过程中的变化。还评估了所测参数与整体镜片满意度的关系。
在任何时间点，两种 MM 隐形眼镜在任何参与者报告的参数（包括整体满意度）上均无显著差异。插入后 6 小时记录到视力略有差异，但这可能无临床意义。舒适度全天下降，尤其是在插入后 10 小时。参与者报告的视觉质量与整体满意度之间观察到中度正相关。舒适度和整体满意度也呈现出类似的模式。自我报告的视觉质量和测量的视力之间相关性较差，突出了使用这些镜片主观评估视力质量的好处。
参与者在两种 MM 隐形眼镜之间的多项测量中表现出相当的结果。值得注意的是，一半的参与者表现出明显的镜片偏好，尽管个人之间的首选镜片不同。MM 的候选者可能受益于试用多种 MM 镜片设计，以最大程度提高初始佩戴满意度。
