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扩散光学技术镜头对近视控制的视觉影响
James S Wolffsohn1, Jennifer S Hill2, Chris Hunt3
1Optometry and Vision Sciences Research Group, Health and Life Sciences, Aston University, Birmingham, UK.
概括
扩散光学技术TM (DOT) 镜头用于近视控制,提供与单视镜头相美的视觉体验. 这些DOT镜头,旨在减少视网膜图像对比度,在视敏度或其他关键指标上没有显著差异.
科学领域:
- 眼科医生 眼科 眼科
- 视光学测量 视光学测量 视光学测量
- 视觉科学科学 视觉科学
背景情况:
- 控制近视的策略对于预防儿童视力障碍至关重要.
- 扩散光学技术TM (DOT) 镜头使用光散射元件来降低视网膜图像对比度.
- 评估新型近视控制镜片的视觉影响对于临床采用至关重要.
研究的目的:
- 为了评估DOT眼镜镜片在初级视线中的视觉性能.
- 为了比较儿童佩戴DOT镜头与标准单视镜头的视觉体验.
- 为了确定DOT镜头是否会影响视觉敏度,对比度敏感性或其他视觉功能.
主要方法:
- 一个随机对照试验,涉及51名儿童 (年龄10-14岁) 佩戴DOT或单视镜头超过3年.
- 综合的视觉评估包括高和低对比度视觉敏度,阅读速度,对比度灵敏度,立体敏度和光.
- 统计功率设置为95%,以检测镜头组之间的显著差异.
主要成果:
- 在双眼距离高对比度和低对比度视觉敏度之间,DOT和单视镜头之间没有观察到统计学上显著的差异.
- 两组的对比灵敏度,阅读速度和刻板印象都相似.
- 观察到光环半径的统计学上显著但临床上很小的差异,保持在非劣势范围之内.
结论:
- 与标准的单视镜头相比,DOT镜头提供了临床上相当的视觉体验.
- 在初级视线中,DOT镜片的视觉影响与单视镜片没有显著差异.
- 在不影响视觉功能的情况下,DOT镜头代表了对近视控制的可行选择.
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