Dial Vision glasses work by virtue of sliding lens technology. This enables you to adjust the power of your lenses, making each stronger or weaker as needed, as you turn the dials located on each side of your glasses.
Adjust Left Eye
To begin using your Dial Vision glasses, put the glasses on and be sure the included eye chart is hanging or sitting somewhere where you can see it. Cover your right eye and use the glasses’ left dial to adjust the left lens until you are able to read the entire eye chart clearly.
Adjust Right Eye
After you’re done adjusting the left lens of your glasses, repeat the process on the other side by covering your left eye and using the chart to determine the lens strength needed for your right. Note: In order to adjust the right lens, you’ll need to turn the dial on the right-hand side of your glasses, not the left.