4 ms·
> As fluid is pumped in or out, the focal length of the lens is changed, meaning the lens can be tuned to the specific requirements If that could be fast enoug
by kps 4y ago
> As fluid is pumped in or out, the focal length of the lens is changed, meaning the lens can be tuned to the specific requirements
If that could be fast enough, then combined with eye tracking we could have full-field glasses for presbyopia.
- toast0 4y agoI'd guess pumping is too slow. Maybe the mechanism used for liquid lenses in mobile phones (and other applications) could work in a larger lens. Eye tracking and range finding would still be tricky to do in a small space. But something similar-ish was prototyped in 2017 [1]. Not the best source there, but maybe you can find something better with "liquid lens eyeglasses" or use that source to help find the original research. Also, not sure if liquid lenses will work for astygmatism very well. [1] https://www.smithsonianmag.com/innovation/these-smart-glasses-adjust-your-vision-automatically-180962078/ https://www.smithsonianmag.com/innovation/these-smart-glasse...
- sarpeedo 4y agoThese are called accommodating intraocular lenses. This is a fairly active area of research with huge potential but current technology is very limited. As a side note who needs eye tracking when your own retina does that for you. The goal with these IOLs is for their lens power to shift based on contraction of the ciliary muscle (the same way a healthy youthful lens works). I am certainly curious about the potential impact of this UV curable lens technology on cataract surgery and possibility of new types of IOLs.