The days of swapping between multiple pairs of glasses could soon be over.
A company has unveiled "adjustable" specs that the wearer can tune on the fly based on what they're using them for.
With the twist of a dial, users can adjust the focus to swap between reading, driving, screen use and more, The Times reports.
US firm Voy reckons the tech, which it calls "nano-precision glasses", will spell the end of requiring several pairs of specs for different activities.
Costing $79 (£59) a pop, the Voy Tunable Glasses can adjust the focus level anywhere between -5D to +2D.
"Turn the wheel away from the nose to for a more negative power, or turn the wheel towards the nose for a more positive power until you can see clearly," Voy writes on its website.