Stanford University develops autofocus lenses
A group of researchers from Stanford University are testing a prototype of smart glasses to correct presbyopia and replace current models that involve limitations to the user
People suffering from this health problem could soon have autofocus glasses thanks to the innovation of a group of researchers from Stanford University, United States, and thus avoid corrective surgery.
Gordon Wetzstein, an engineer at the American university, said: “More than a billion people in the world have presbyopia and we have created a pair of autofocus lenses that could one day correct vision much more effectively than traditional glasses.”
Presbyopia, the difficulty of focusing near objects due to the loss of elasticity of the muscles of the eye, affects millions of patients who must resort to traditional reading lenses or surgery.
The prototype of the “smart” glasses are in the testing stage, according to a publication in the journal Science Advances. Its operation is possible because the glasses “follow the eyes and focus automatically, so they have called them autofocales”.
The Wetzstein prototype works with liquid-filled lenses that bulge and thin out as the field of view changes. “It includes eye tracking sensors that triangulate where a person is looking and determine the precise distance to the object of interest.”
The Stanford team is responsible for software development that uses eye tracking data to maintain a consistent and perfect focus. The tests were performed on 56 people with presbyopia, who stated that the autofocus product worked better and faster in reading and other tasks. These glasses will be adapted for the comfort of the users. For this they will become more “light, efficient in energy and with style.”
M.Pino
Source: 20minutos.es
