Infrared triggered smart contact lens for the treatment of presbyopia
Infrared triggered smart contact lens for the treatment of presbyopia
复制标题
红外线触发智能隐形眼镜治疗老花眼
DOI：
10.1088/1361-6463/ac52cc
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Bailey J
中科院分区：
文献类型：
--
作者：
Bailey J
制造了可切换接触透镜原型，并使用集成的现成电子部件进行测试，以驱动液晶（LC）有源透镜元件。该原型能够改变其平均+1.9 D的光焦度，但也测得最大为+3.2 ±0.2 D。可切换焦点隐形眼镜旨在帮助那些患有老花眼（一种不可避免的与年龄相关的眼部疾病）的人恢复功能性近视和中间视力调节。在该原型中使用的定制聚甲基丙烯酸甲酯接触透镜基底等同于市售巩膜接触镜片。研究发现，当至少一个衬底厚度< 100 µm（最终器件需要）时，需要更仔细的设计考虑。在没有这些设计考虑的情况下，当LC插入层能够弯曲时，透镜的可切换光焦度易于改变。该原型有一个车载电子平台，由电池自行供电。用600 Hz的红外信号照射电子器件封装，打开装置，其将AC电压传递到接触透镜的电极，用电场重新定向LC的指向矢。据我们所知，这是第一次演示电池供电和无线触发的智能接触透镜用于治疗老花眼。
A switchable contact lens prototype was fabricated and tested with integrated off the shelf electronic components to drive a liquid crystal (LC) active lens element. This prototype was capable of changing its focal power by an average of+ 1.9 D, but a maximum of+ 3.2±0.2 D was also measured. Switchable focus contact lenses are intended to help restore functional near and intermediate vision accommodation to those suffering from presbyopia, an inevitable age-related eye condition. The custom poly-methyl-methacrylate contact lens substrates used in this prototype are equivalent to commercially available scleral contact lenses. It was discovered that more careful design considerations are needed when at least one of the substrates is< 100 µm thick (which is needed for a final device). Without these design considerations, the switchable focal power of the lens is susceptible to change as the LC insert layer is able to flex. The prototype has an on-board electronics platform which was self-powered with a battery. Illuminating the electronics package with a 600 Hz infrared signal switched the device on, which passed an AC voltage to the electrodes of the contact lens, reorientating the director of the LC with an electric field. To our knowledge, this is the first demonstration of a battery powered and wirelessly triggered smart contact lens for the treatment of presbyopia.
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DOI：
--
发表时间：
2013
期刊：
影响因子：
--
作者：
J. De Smet;A. Avci;P. Joshi;D. Schaubroeck;D. Cuypers;H. De Smet
通讯作者：
H. De Smet
影响因子：
2
作者：
Mohammad Ali Zare Mehrjerdi;M. Mohebbi;Mehdi Zandian
通讯作者：
Mehdi Zandian
影响因子：
4.6
作者：
Khaldi, A.;Daniel, E.;de la Tocnaye, J. -L. de Bougrenet
通讯作者：
de la Tocnaye, J. -L. de Bougrenet
影响因子：
3.8
作者：
Fan, YH;Ren, HW;Wu, ST
通讯作者：
Wu, ST
可切换液晶隐形眼镜：老化眼睛的动态视觉
影响因子：
1.9
作者：
H. Milton;H. Gleeson;P. Morgan;J. Goodby;S. Cowling;J. Clamp
通讯作者：
J. Clamp