Smart Glasses for Auto Focus

The human eye has a natural lens that allows us to pick and focus on an object. As we age, the lens loses it’s flexibility and a set of additional lenses is worn over the eyes in the form of glasses to help make up for this deficit. Eventually two sets of lenses are required for reading and distance vision.

If you have two sets of numbers for your eye glasses and require bifocal lenses, you know how much of a jolt the eyes can get when they have to go from focusing on an object close by to a distant one. At the University of Utah researchers are working on developing smart glasses that automatically focus on the object that you wish to see.

The smart glasses come with a distance meter that measures the distance of the object the person is looking at. Then the lens is curved automatically to the right curvature to adjust the vision. The lens is able to change focus from one object to another in 14 milliseconds. That’s literally faster than in a blink of an eye.

To configure the smart glasses the individual needs to input their eye sight prescription into an app that is present on an accompanying smart phone. The actual calibration in this science project takes place via a Bluetooth connection.