A team from Stanford University's Electrical Engineering Department are working on a set of glasses, which uses eye tracking to mimic the eye's natural mechanism to help those who struggle to see.
Gordon Wetzstein, assistant professor in Stanford University's Electrical Engineering Department, told Digital Trends, said: "Reading glasses can be cumbersome, because you need to carry them and put them on or off, depending on whether you are looking at an object at a close or far distance. While this works well for reading, it clearly does not for scenarios like driving. Bifocals and monovision gives a user clear vision at only two different distances.
"Also, monovision is perceptually uncomfortable for many users. Progressives work reasonably well, but they require a user to align their head with the object that they look at. This is problematic when you want to look at small objects at different distances, because it takes time to align the head and that is also inconvenient.
"In a large-scale user study, we [have demonstrated] that Autofocals exhibit better visual acuity when compared to conventional presbyopia correction methods. Autofocals [also] significantly improve visual task performance, and it is also ranked by users as the preferred correction in terms of ease of refocusing."